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Finding the Fourth Proportional to 487,168.20, 730,205.55 and 234,569.70

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Solution

The fourth proportional to 487,168.20, 730,205.55 and 234,569.70 is: 351,591.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,168.20 : 730,205.55 = 234,569.70 : x
  2. Step 2: Convert to fraction form
    487,168.20/730,205.55 = 234,569.70/x
  3. Step 3: Cross multiply
    487,168.20x = 730,205.55 × 234,569.70
  4. Step 4: Simplify right side
    487,168.20x = 171,284,096,801.84
  5. Step 5: Solve for x
    x = 171,284,096,801.84/487,168.20
  6. Step 6: Final answer
    x = 351,591.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.