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Finding the Fourth Proportional to 359,177.61, 495,985.50 and 342,162.75

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Solution

The fourth proportional to 359,177.61, 495,985.50 and 342,162.75 is: 472,489.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,177.61 : 495,985.50 = 342,162.75 : x
  2. Step 2: Convert to fraction form
    359,177.61/495,985.50 = 342,162.75/x
  3. Step 3: Cross multiply
    359,177.61x = 495,985.50 × 342,162.75
  4. Step 4: Simplify right side
    359,177.61x = 169,707,762,640.13
  5. Step 5: Solve for x
    x = 169,707,762,640.13/359,177.61
  6. Step 6: Final answer
    x = 472,489.82

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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.