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Finding the Fourth Proportional to 279,230.88, 385,472.44 and 171,892.92

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Solution

The fourth proportional to 279,230.88, 385,472.44 and 171,892.92 is: 237,294.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,230.88 : 385,472.44 = 171,892.92 : x
  2. Step 2: Convert to fraction form
    279,230.88/385,472.44 = 171,892.92/x
  3. Step 3: Cross multiply
    279,230.88x = 385,472.44 × 171,892.92
  4. Step 4: Simplify right side
    279,230.88x = 66,259,983,291.12
  5. Step 5: Solve for x
    x = 66,259,983,291.12/279,230.88
  6. Step 6: Final answer
    x = 237,294.61

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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.