Home / 207,555.85-311,432.19-123,482.10

Finding the Fourth Proportional to 207,555.85, 311,432.19 and 123,482.10

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Solution

The fourth proportional to 207,555.85, 311,432.19 and 123,482.10 is: 185,281.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,555.85 : 311,432.19 = 123,482.10 : x
  2. Step 2: Convert to fraction form
    207,555.85/311,432.19 = 123,482.10/x
  3. Step 3: Cross multiply
    207,555.85x = 311,432.19 × 123,482.10
  4. Step 4: Simplify right side
    207,555.85x = 38,456,302,228.20
  5. Step 5: Solve for x
    x = 38,456,302,228.20/207,555.85
  6. Step 6: Final answer
    x = 185,281.71

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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.