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Finding the Fourth Proportional to 338,354.82, 507,778.07 and 272,589.30

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Solution

The fourth proportional to 338,354.82, 507,778.07 and 272,589.30 is: 409,082.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,354.82 : 507,778.07 = 272,589.30 : x
  2. Step 2: Convert to fraction form
    338,354.82/507,778.07 = 272,589.30/x
  3. Step 3: Cross multiply
    338,354.82x = 507,778.07 × 272,589.30
  4. Step 4: Simplify right side
    338,354.82x = 138,414,867,293.71
  5. Step 5: Solve for x
    x = 138,414,867,293.71/338,354.82
  6. Step 6: Final answer
    x = 409,082.00

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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.