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Finding the Fourth Proportional to 359,279.10, 495,834.71 and 198,149.45

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Solution

The fourth proportional to 359,279.10, 495,834.71 and 198,149.45 is: 273,462.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,279.10 : 495,834.71 = 198,149.45 : x
  2. Step 2: Convert to fraction form
    359,279.10/495,834.71 = 198,149.45/x
  3. Step 3: Cross multiply
    359,279.10x = 495,834.71 × 198,149.45
  4. Step 4: Simplify right side
    359,279.10x = 98,249,371,607.49
  5. Step 5: Solve for x
    x = 98,249,371,607.49/359,279.10
  6. Step 6: Final answer
    x = 273,462.53

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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.