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Finding the Fourth Proportional to 279,523.18, 418,497.41 and 251,179.66

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Solution

The fourth proportional to 279,523.18, 418,497.41 and 251,179.66 is: 376,061.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,523.18 : 418,497.41 = 251,179.66 : x
  2. Step 2: Convert to fraction form
    279,523.18/418,497.41 = 251,179.66/x
  3. Step 3: Cross multiply
    279,523.18x = 418,497.41 × 251,179.66
  4. Step 4: Simplify right side
    279,523.18x = 105,118,035,898.78
  5. Step 5: Solve for x
    x = 105,118,035,898.78/279,523.18
  6. Step 6: Final answer
    x = 376,061.96

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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.