Home / 309,997.10-465,038.85-132,502.70

Finding the Fourth Proportional to 309,997.10, 465,038.85 and 132,502.70

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Solution

The fourth proportional to 309,997.10, 465,038.85 and 132,502.70 is: 198,772.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,997.10 : 465,038.85 = 132,502.70 : x
  2. Step 2: Convert to fraction form
    309,997.10/465,038.85 = 132,502.70/x
  3. Step 3: Cross multiply
    309,997.10x = 465,038.85 × 132,502.70
  4. Step 4: Simplify right side
    309,997.10x = 61,618,903,229.90
  5. Step 5: Solve for x
    x = 61,618,903,229.90/309,997.10
  6. Step 6: Final answer
    x = 198,772.52

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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.