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Finding the Fourth Proportional to 261,402.85, 392,108.14 and 101,488.04

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Solution

The fourth proportional to 261,402.85, 392,108.14 and 101,488.04 is: 152,233.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,402.85 : 392,108.14 = 101,488.04 : x
  2. Step 2: Convert to fraction form
    261,402.85/392,108.14 = 101,488.04/x
  3. Step 3: Cross multiply
    261,402.85x = 392,108.14 × 101,488.04
  4. Step 4: Simplify right side
    261,402.85x = 39,794,286,233.37
  5. Step 5: Solve for x
    x = 39,794,286,233.37/261,402.85
  6. Step 6: Final answer
    x = 152,233.56

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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.