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Finding the Fourth Proportional to 323,617.87, 485,496.87 and 123,938.29

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Solution

The fourth proportional to 323,617.87, 485,496.87 and 123,938.29 is: 185,934.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,617.87 : 485,496.87 = 123,938.29 : x
  2. Step 2: Convert to fraction form
    323,617.87/485,496.87 = 123,938.29/x
  3. Step 3: Cross multiply
    323,617.87x = 485,496.87 × 123,938.29
  4. Step 4: Simplify right side
    323,617.87x = 60,171,651,868.15
  5. Step 5: Solve for x
    x = 60,171,651,868.15/323,617.87
  6. Step 6: Final answer
    x = 185,934.27

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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.