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Finding the Fourth Proportional to 279,180.96, 418,773.90 and 79,501.18

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Solution

The fourth proportional to 279,180.96, 418,773.90 and 79,501.18 is: 119,252.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,180.96 : 418,773.90 = 79,501.18 : x
  2. Step 2: Convert to fraction form
    279,180.96/418,773.90 = 79,501.18/x
  3. Step 3: Cross multiply
    279,180.96x = 418,773.90 × 79,501.18
  4. Step 4: Simplify right side
    279,180.96x = 33,293,019,203.20
  5. Step 5: Solve for x
    x = 33,293,019,203.20/279,180.96
  6. Step 6: Final answer
    x = 119,252.47

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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.