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Finding the Fourth Proportional to 400,717.90, 600,122.80 and 231,882.31

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Solution

The fourth proportional to 400,717.90, 600,122.80 and 231,882.31 is: 347,271.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,717.90 : 600,122.80 = 231,882.31 : x
  2. Step 2: Convert to fraction form
    400,717.90/600,122.80 = 231,882.31/x
  3. Step 3: Cross multiply
    400,717.90x = 600,122.80 × 231,882.31
  4. Step 4: Simplify right side
    400,717.90x = 139,157,859,937.21
  5. Step 5: Solve for x
    x = 139,157,859,937.21/400,717.90
  6. Step 6: Final answer
    x = 347,271.39

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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.