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Finding the Fourth Proportional to 359,354.48, 495,911.52 and 198,213.88

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Solution

The fourth proportional to 359,354.48, 495,911.52 and 198,213.88 is: 273,536.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,354.48 : 495,911.52 = 198,213.88 : x
  2. Step 2: Convert to fraction form
    359,354.48/495,911.52 = 198,213.88/x
  3. Step 3: Cross multiply
    359,354.48x = 495,911.52 × 198,213.88
  4. Step 4: Simplify right side
    359,354.48x = 98,296,546,515.90
  5. Step 5: Solve for x
    x = 98,296,546,515.90/359,354.48
  6. Step 6: Final answer
    x = 273,536.44

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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.