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Finding the Fourth Proportional to 207,534.30, 311,301.45 and 132,738.90

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Solution

The fourth proportional to 207,534.30, 311,301.45 and 132,738.90 is: 199,108.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,534.30 : 311,301.45 = 132,738.90 : x
  2. Step 2: Convert to fraction form
    207,534.30/311,301.45 = 132,738.90/x
  3. Step 3: Cross multiply
    207,534.30x = 311,301.45 × 132,738.90
  4. Step 4: Simplify right side
    207,534.30x = 41,321,812,041.41
  5. Step 5: Solve for x
    x = 41,321,812,041.41/207,534.30
  6. Step 6: Final answer
    x = 199,108.35

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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.