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Finding the Fourth Proportional to 359,691.28, 496,410.38 and 308,872.25

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Solution

The fourth proportional to 359,691.28, 496,410.38 and 308,872.25 is: 426,274.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,691.28 : 496,410.38 = 308,872.25 : x
  2. Step 2: Convert to fraction form
    359,691.28/496,410.38 = 308,872.25/x
  3. Step 3: Cross multiply
    359,691.28x = 496,410.38 × 308,872.25
  4. Step 4: Simplify right side
    359,691.28x = 153,327,389,284.08
  5. Step 5: Solve for x
    x = 153,327,389,284.08/359,691.28
  6. Step 6: Final answer
    x = 426,274.97

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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.