Home / 254,710.38-381,965.49-86,184.30

Finding the Fourth Proportional to 254,710.38, 381,965.49 and 86,184.30

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Solution

The fourth proportional to 254,710.38, 381,965.49 and 86,184.30 is: 129,242.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,710.38 : 381,965.49 = 86,184.30 : x
  2. Step 2: Convert to fraction form
    254,710.38/381,965.49 = 86,184.30/x
  3. Step 3: Cross multiply
    254,710.38x = 381,965.49 × 86,184.30
  4. Step 4: Simplify right side
    254,710.38x = 32,919,428,379.81
  5. Step 5: Solve for x
    x = 32,919,428,379.81/254,710.38
  6. Step 6: Final answer
    x = 129,242.59

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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.