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Finding the Fourth Proportional to 359,157.87, 495,641.22 and 198,018.68

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Solution

The fourth proportional to 359,157.87, 495,641.22 and 198,018.68 is: 273,267.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,157.87 : 495,641.22 = 198,018.68 : x
  2. Step 2: Convert to fraction form
    359,157.87/495,641.22 = 198,018.68/x
  3. Step 3: Cross multiply
    359,157.87x = 495,641.22 × 198,018.68
  4. Step 4: Simplify right side
    359,157.87x = 98,146,217,659.78
  5. Step 5: Solve for x
    x = 98,146,217,659.78/359,157.87
  6. Step 6: Final answer
    x = 273,267.62

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1.5x scale

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.