Home / 207,939.40-311,928.74-58,179.72

Finding the Fourth Proportional to 207,939.40, 311,928.74 and 58,179.72

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Solution

The fourth proportional to 207,939.40, 311,928.74 and 58,179.72 is: 87,275.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,939.40 : 311,928.74 = 58,179.72 : x
  2. Step 2: Convert to fraction form
    207,939.40/311,928.74 = 58,179.72/x
  3. Step 3: Cross multiply
    207,939.40x = 311,928.74 × 58,179.72
  4. Step 4: Simplify right side
    207,939.40x = 18,147,926,753.15
  5. Step 5: Solve for x
    x = 18,147,926,753.15/207,939.40
  6. Step 6: Final answer
    x = 87,275.08

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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.