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Finding the Fourth Proportional to 431,439.62, 595,389.64 and 240,465.31

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Solution

The fourth proportional to 431,439.62, 595,389.64 and 240,465.31 is: 331,843.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,439.62 : 595,389.64 = 240,465.31 : x
  2. Step 2: Convert to fraction form
    431,439.62/595,389.64 = 240,465.31/x
  3. Step 3: Cross multiply
    431,439.62x = 595,389.64 × 240,465.31
  4. Step 4: Simplify right side
    431,439.62x = 143,170,553,151.06
  5. Step 5: Solve for x
    x = 143,170,553,151.06/431,439.62
  6. Step 6: Final answer
    x = 331,843.78

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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.