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Finding the Fourth Proportional to 359,145.80, 495,624.66 and 198,007.10

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Solution

The fourth proportional to 359,145.80, 495,624.66 and 198,007.10 is: 273,251.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,145.80 : 495,624.66 = 198,007.10 : x
  2. Step 2: Convert to fraction form
    359,145.80/495,624.66 = 198,007.10/x
  3. Step 3: Cross multiply
    359,145.80x = 495,624.66 × 198,007.10
  4. Step 4: Simplify right side
    359,145.80x = 98,137,201,615.09
  5. Step 5: Solve for x
    x = 98,137,201,615.09/359,145.80
  6. Step 6: Final answer
    x = 273,251.70

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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.