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Finding the Fourth Proportional to 187,279.75, 280,922.21 and 60,920.65

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Solution

The fourth proportional to 187,279.75, 280,922.21 and 60,920.65 is: 91,381.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,279.75 : 280,922.21 = 60,920.65 : x
  2. Step 2: Convert to fraction form
    187,279.75/280,922.21 = 60,920.65/x
  3. Step 3: Cross multiply
    187,279.75x = 280,922.21 × 60,920.65
  4. Step 4: Simplify right side
    187,279.75x = 17,113,964,559.69
  5. Step 5: Solve for x
    x = 17,113,964,559.69/187,279.75
  6. Step 6: Final answer
    x = 91,381.82

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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.