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Finding the Fourth Proportional to 207,366.27, 311,124.32 and 72,450.30

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Solution

The fourth proportional to 207,366.27, 311,124.32 and 72,450.30 is: 108,701.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,366.27 : 311,124.32 = 72,450.30 : x
  2. Step 2: Convert to fraction form
    207,366.27/311,124.32 = 72,450.30/x
  3. Step 3: Cross multiply
    207,366.27x = 311,124.32 × 72,450.30
  4. Step 4: Simplify right side
    207,366.27x = 22,541,050,321.30
  5. Step 5: Solve for x
    x = 22,541,050,321.30/207,366.27
  6. Step 6: Final answer
    x = 108,701.62

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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.