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Finding the Fourth Proportional to 207,552.57, 311,427.27 and 123,478.82

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Solution

The fourth proportional to 207,552.57, 311,427.27 and 123,478.82 is: 185,276.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,552.57 : 311,427.27 = 123,478.82 : x
  2. Step 2: Convert to fraction form
    207,552.57/311,427.27 = 123,478.82/x
  3. Step 3: Cross multiply
    207,552.57x = 311,427.27 × 123,478.82
  4. Step 4: Simplify right side
    207,552.57x = 38,454,672,593.99
  5. Step 5: Solve for x
    x = 38,454,672,593.99/207,552.57
  6. Step 6: Final answer
    x = 185,276.78

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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.