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Finding the Fourth Proportional to 545,105.64, 752,238.24 and 303,388.14

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Solution

The fourth proportional to 545,105.64, 752,238.24 and 303,388.14 is: 418,671.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,105.64 : 752,238.24 = 303,388.14 : x
  2. Step 2: Convert to fraction form
    545,105.64/752,238.24 = 303,388.14/x
  3. Step 3: Cross multiply
    545,105.64x = 752,238.24 × 303,388.14
  4. Step 4: Simplify right side
    545,105.64x = 228,220,160,470.47
  5. Step 5: Solve for x
    x = 228,220,160,470.47/545,105.64
  6. Step 6: Final answer
    x = 418,671.43

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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.