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Finding the Fourth Proportional to 279,450.90, 418,922.91 and 113,125.14

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Solution

The fourth proportional to 279,450.90, 418,922.91 and 113,125.14 is: 169,585.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,450.90 : 418,922.91 = 113,125.14 : x
  2. Step 2: Convert to fraction form
    279,450.90/418,922.91 = 113,125.14/x
  3. Step 3: Cross multiply
    279,450.90x = 418,922.91 × 113,125.14
  4. Step 4: Simplify right side
    279,450.90x = 47,390,712,842.96
  5. Step 5: Solve for x
    x = 47,390,712,842.96/279,450.90
  6. Step 6: Final answer
    x = 169,585.11

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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.