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Finding the Fourth Proportional to 272,359.58, 375,902.10 and 157,641.30

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Solution

The fourth proportional to 272,359.58, 375,902.10 and 157,641.30 is: 217,571.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,359.58 : 375,902.10 = 157,641.30 : x
  2. Step 2: Convert to fraction form
    272,359.58/375,902.10 = 157,641.30/x
  3. Step 3: Cross multiply
    272,359.58x = 375,902.10 × 157,641.30
  4. Step 4: Simplify right side
    272,359.58x = 59,257,695,716.73
  5. Step 5: Solve for x
    x = 59,257,695,716.73/272,359.58
  6. Step 6: Final answer
    x = 217,571.55

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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.