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Finding the Fourth Proportional to 207,593.76, 311,489.06 and 123,520.08

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Solution

The fourth proportional to 207,593.76, 311,489.06 and 123,520.08 is: 185,338.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,593.76 : 311,489.06 = 123,520.08 : x
  2. Step 2: Convert to fraction form
    207,593.76/311,489.06 = 123,520.08/x
  3. Step 3: Cross multiply
    207,593.76x = 311,489.06 × 123,520.08
  4. Step 4: Simplify right side
    207,593.76x = 38,475,153,610.32
  5. Step 5: Solve for x
    x = 38,475,153,610.32/207,593.76
  6. Step 6: Final answer
    x = 185,338.68

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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.