Home / 487,956.30-731,930.40-132,969.75

Finding the Fourth Proportional to 487,956.30, 731,930.40 and 132,969.75

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Solution

The fourth proportional to 487,956.30, 731,930.40 and 132,969.75 is: 199,453.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,956.30 : 731,930.40 = 132,969.75 : x
  2. Step 2: Convert to fraction form
    487,956.30/731,930.40 = 132,969.75/x
  3. Step 3: Cross multiply
    487,956.30x = 731,930.40 × 132,969.75
  4. Step 4: Simplify right side
    487,956.30x = 97,324,602,305.40
  5. Step 5: Solve for x
    x = 97,324,602,305.40/487,956.30
  6. Step 6: Final answer
    x = 199,453.52

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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.