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Finding the Fourth Proportional to 272,154.71, 375,619.91 and 157,503.15

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Solution

The fourth proportional to 272,154.71, 375,619.91 and 157,503.15 is: 217,381.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,154.71 : 375,619.91 = 157,503.15 : x
  2. Step 2: Convert to fraction form
    272,154.71/375,619.91 = 157,503.15/x
  3. Step 3: Cross multiply
    272,154.71x = 375,619.91 × 157,503.15
  4. Step 4: Simplify right side
    272,154.71x = 59,161,318,240.20
  5. Step 5: Solve for x
    x = 59,161,318,240.20/272,154.71
  6. Step 6: Final answer
    x = 217,381.20

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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.