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Finding the Fourth Proportional to 497,387.98, 745,638.63 and 231,003.28

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Solution

The fourth proportional to 497,387.98, 745,638.63 and 231,003.28 is: 346,299.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,387.98 : 745,638.63 = 231,003.28 : x
  2. Step 2: Convert to fraction form
    497,387.98/745,638.63 = 231,003.28/x
  3. Step 3: Cross multiply
    497,387.98x = 745,638.63 × 231,003.28
  4. Step 4: Simplify right side
    497,387.98x = 172,244,969,224.71
  5. Step 5: Solve for x
    x = 172,244,969,224.71/497,387.98
  6. Step 6: Final answer
    x = 346,299.02

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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.