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Finding the Fourth Proportional to 207,542.70, 311,114.79 and 132,450.84

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Solution

The fourth proportional to 207,542.70, 311,114.79 and 132,450.84 is: 198,549.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,542.70 : 311,114.79 = 132,450.84 : x
  2. Step 2: Convert to fraction form
    207,542.70/311,114.79 = 132,450.84/x
  3. Step 3: Cross multiply
    207,542.70x = 311,114.79 × 132,450.84
  4. Step 4: Simplify right side
    207,542.70x = 41,207,415,271.92
  5. Step 5: Solve for x
    x = 41,207,415,271.92/207,542.70
  6. Step 6: Final answer
    x = 198,549.10

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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.