Home / 487,947.30-731,916.90-132,960.75

Finding the Fourth Proportional to 487,947.30, 731,916.90 and 132,960.75

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Solution

The fourth proportional to 487,947.30, 731,916.90 and 132,960.75 is: 199,440.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,947.30 : 731,916.90 = 132,960.75 : x
  2. Step 2: Convert to fraction form
    487,947.30/731,916.90 = 132,960.75/x
  3. Step 3: Cross multiply
    487,947.30x = 731,916.90 × 132,960.75
  4. Step 4: Simplify right side
    487,947.30x = 97,316,219,961.68
  5. Step 5: Solve for x
    x = 97,316,219,961.68/487,947.30
  6. Step 6: Final answer
    x = 199,440.02

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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.