Home / 486,588.20-729,882.30-154,164.20

Finding the Fourth Proportional to 486,588.20, 729,882.30 and 154,164.20

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Solution

The fourth proportional to 486,588.20, 729,882.30 and 154,164.20 is: 231,246.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,588.20 : 729,882.30 = 154,164.20 : x
  2. Step 2: Convert to fraction form
    486,588.20/729,882.30 = 154,164.20/x
  3. Step 3: Cross multiply
    486,588.20x = 729,882.30 × 154,164.20
  4. Step 4: Simplify right side
    486,588.20x = 112,521,720,873.66
  5. Step 5: Solve for x
    x = 112,521,720,873.66/486,588.20
  6. Step 6: Final answer
    x = 231,246.30

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Similar ratio
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1.5x scale

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.