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Finding the Fourth Proportional to 279,275.27, 418,862.59 and 119,441.11

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Solution

The fourth proportional to 279,275.27, 418,862.59 and 119,441.11 is: 179,140.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,275.27 : 418,862.59 = 119,441.11 : x
  2. Step 2: Convert to fraction form
    279,275.27/418,862.59 = 119,441.11/x
  3. Step 3: Cross multiply
    279,275.27x = 418,862.59 × 119,441.11
  4. Step 4: Simplify right side
    279,275.27x = 50,029,411,620.49
  5. Step 5: Solve for x
    x = 50,029,411,620.49/279,275.27
  6. Step 6: Final answer
    x = 179,140.14

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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.