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Finding the Fourth Proportional to 545,057.26, 752,171.67 and 303,339.76

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Solution

The fourth proportional to 545,057.26, 752,171.67 and 303,339.76 is: 418,604.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,057.26 : 752,171.67 = 303,339.76 : x
  2. Step 2: Convert to fraction form
    545,057.26/752,171.67 = 303,339.76/x
  3. Step 3: Cross multiply
    545,057.26x = 752,171.67 × 303,339.76
  4. Step 4: Simplify right side
    545,057.26x = 228,163,571,976.17
  5. Step 5: Solve for x
    x = 228,163,571,976.17/545,057.26
  6. Step 6: Final answer
    x = 418,604.78

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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.