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Finding the Fourth Proportional to 359,273.80, 495,801.32 and 198,134.56

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Solution

The fourth proportional to 359,273.80, 495,801.32 and 198,134.56 is: 273,427.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,273.80 : 495,801.32 = 198,134.56 : x
  2. Step 2: Convert to fraction form
    359,273.80/495,801.32 = 198,134.56/x
  3. Step 3: Cross multiply
    359,273.80x = 495,801.32 × 198,134.56
  4. Step 4: Simplify right side
    359,273.80x = 98,235,376,385.62
  5. Step 5: Solve for x
    x = 98,235,376,385.62/359,273.80
  6. Step 6: Final answer
    x = 273,427.61

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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.