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Finding the Fourth Proportional to 359,128.75, 495,584.91 and 195,781.87

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Solution

The fourth proportional to 359,128.75, 495,584.91 and 195,781.87 is: 270,172.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,128.75 : 495,584.91 = 195,781.87 : x
  2. Step 2: Convert to fraction form
    359,128.75/495,584.91 = 195,781.87/x
  3. Step 3: Cross multiply
    359,128.75x = 495,584.91 × 195,781.87
  4. Step 4: Simplify right side
    359,128.75x = 97,026,540,423.58
  5. Step 5: Solve for x
    x = 97,026,540,423.58/359,128.75
  6. Step 6: Final answer
    x = 270,172.02

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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.