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Finding the Fourth Proportional to 545,162.84, 752,324.75 and 303,440.23

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Solution

The fourth proportional to 545,162.84, 752,324.75 and 303,440.23 is: 418,747.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,162.84 : 752,324.75 = 303,440.23 : x
  2. Step 2: Convert to fraction form
    545,162.84/752,324.75 = 303,440.23/x
  3. Step 3: Cross multiply
    545,162.84x = 752,324.75 × 303,440.23
  4. Step 4: Simplify right side
    545,162.84x = 228,285,595,174.69
  5. Step 5: Solve for x
    x = 228,285,595,174.69/545,162.84
  6. Step 6: Final answer
    x = 418,747.53

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.