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Finding the Fourth Proportional to 272,397.79, 375,902.08 and 157,660.57

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Solution

The fourth proportional to 272,397.79, 375,902.08 and 157,660.57 is: 217,567.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,397.79 : 375,902.08 = 157,660.57 : x
  2. Step 2: Convert to fraction form
    272,397.79/375,902.08 = 157,660.57/x
  3. Step 3: Cross multiply
    272,397.79x = 375,902.08 × 157,660.57
  4. Step 4: Simplify right side
    272,397.79x = 59,264,936,196.99
  5. Step 5: Solve for x
    x = 59,264,936,196.99/272,397.79
  6. Step 6: Final answer
    x = 217,567.61

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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.