Home / 387,266.38-580,484.25-187,311.70

Finding the Fourth Proportional to 387,266.38, 580,484.25 and 187,311.70

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Solution

The fourth proportional to 387,266.38, 580,484.25 and 187,311.70 is: 280,766.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,266.38 : 580,484.25 = 187,311.70 : x
  2. Step 2: Convert to fraction form
    387,266.38/580,484.25 = 187,311.70/x
  3. Step 3: Cross multiply
    387,266.38x = 580,484.25 × 187,311.70
  4. Step 4: Simplify right side
    387,266.38x = 108,731,491,690.73
  5. Step 5: Solve for x
    x = 108,731,491,690.73/387,266.38
  6. Step 6: Final answer
    x = 280,766.67

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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.