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Finding the Fourth Proportional to 279,080.40, 418,562.04 and 92,048.08

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Solution

The fourth proportional to 279,080.40, 418,562.04 and 92,048.08 is: 138,052.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,080.40 : 418,562.04 = 92,048.08 : x
  2. Step 2: Convert to fraction form
    279,080.40/418,562.04 = 92,048.08/x
  3. Step 3: Cross multiply
    279,080.40x = 418,562.04 × 92,048.08
  4. Step 4: Simplify right side
    279,080.40x = 38,527,832,142.88
  5. Step 5: Solve for x
    x = 38,527,832,142.88/279,080.40
  6. Step 6: Final answer
    x = 138,052.81

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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.