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Finding the Fourth Proportional to 279,055.13, 418,582.71 and 82,063.13

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Solution

The fourth proportional to 279,055.13, 418,582.71 and 82,063.13 is: 123,094.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,055.13 : 418,582.71 = 82,063.13 : x
  2. Step 2: Convert to fraction form
    279,055.13/418,582.71 = 82,063.13/x
  3. Step 3: Cross multiply
    279,055.13x = 418,582.71 × 82,063.13
  4. Step 4: Simplify right side
    279,055.13x = 34,350,205,253.57
  5. Step 5: Solve for x
    x = 34,350,205,253.57/279,055.13
  6. Step 6: Final answer
    x = 123,094.69

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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.