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Finding the Fourth Proportional to 359,416.76, 495,973.86 and 198,272.12

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Solution

The fourth proportional to 359,416.76, 495,973.86 and 198,272.12 is: 273,603.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,416.76 : 495,973.86 = 198,272.12 : x
  2. Step 2: Convert to fraction form
    359,416.76/495,973.86 = 198,272.12/x
  3. Step 3: Cross multiply
    359,416.76x = 495,973.86 × 198,272.12
  4. Step 4: Simplify right side
    359,416.76x = 98,337,788,686.78
  5. Step 5: Solve for x
    x = 98,337,788,686.78/359,416.76
  6. Step 6: Final answer
    x = 273,603.79

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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.