Home / 354,471.36-531,786.15-129,827.04

Finding the Fourth Proportional to 354,471.36, 531,786.15 and 129,827.04

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Solution

The fourth proportional to 354,471.36, 531,786.15 and 129,827.04 is: 194,769.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,471.36 : 531,786.15 = 129,827.04 : x
  2. Step 2: Convert to fraction form
    354,471.36/531,786.15 = 129,827.04/x
  3. Step 3: Cross multiply
    354,471.36x = 531,786.15 × 129,827.04
  4. Step 4: Simplify right side
    354,471.36x = 69,040,221,767.50
  5. Step 5: Solve for x
    x = 69,040,221,767.50/354,471.36
  6. Step 6: Final answer
    x = 194,769.53

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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.