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Finding the Fourth Proportional to 378,391.83, 567,589.78 and 97,909.08

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Solution

The fourth proportional to 378,391.83, 567,589.78 and 97,909.08 is: 146,864.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,391.83 : 567,589.78 = 97,909.08 : x
  2. Step 2: Convert to fraction form
    378,391.83/567,589.78 = 97,909.08/x
  3. Step 3: Cross multiply
    378,391.83x = 567,589.78 × 97,909.08
  4. Step 4: Simplify right side
    378,391.83x = 55,572,192,767.47
  5. Step 5: Solve for x
    x = 55,572,192,767.47/378,391.83
  6. Step 6: Final answer
    x = 146,864.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.