Home / 207,520.23-311,291.60-65,376.71

Finding the Fourth Proportional to 207,520.23, 311,291.60 and 65,376.71

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Solution

The fourth proportional to 207,520.23, 311,291.60 and 65,376.71 is: 98,068.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,520.23 : 311,291.60 = 65,376.71 : x
  2. Step 2: Convert to fraction form
    207,520.23/311,291.60 = 65,376.71/x
  3. Step 3: Cross multiply
    207,520.23x = 311,291.60 × 65,376.71
  4. Step 4: Simplify right side
    207,520.23x = 20,351,218,775.29
  5. Step 5: Solve for x
    x = 20,351,218,775.29/207,520.23
  6. Step 6: Final answer
    x = 98,068.60

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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.