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Finding the Fourth Proportional to 359,142.75, 495,639.33 and 197,997.57

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Solution

The fourth proportional to 359,142.75, 495,639.33 and 197,997.57 is: 273,248.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,142.75 : 495,639.33 = 197,997.57 : x
  2. Step 2: Convert to fraction form
    359,142.75/495,639.33 = 197,997.57/x
  3. Step 3: Cross multiply
    359,142.75x = 495,639.33 × 197,997.57
  4. Step 4: Simplify right side
    359,142.75x = 98,135,382,936.43
  5. Step 5: Solve for x
    x = 98,135,382,936.43/359,142.75
  6. Step 6: Final answer
    x = 273,248.96

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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.