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Finding the Fourth Proportional to 245,102.91, 338,250.22 and 136,211.84

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Solution

The fourth proportional to 245,102.91, 338,250.22 and 136,211.84 is: 187,976.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,102.91 : 338,250.22 = 136,211.84 : x
  2. Step 2: Convert to fraction form
    245,102.91/338,250.22 = 136,211.84/x
  3. Step 3: Cross multiply
    245,102.91x = 338,250.22 × 136,211.84
  4. Step 4: Simplify right side
    245,102.91x = 46,073,684,846.60
  5. Step 5: Solve for x
    x = 46,073,684,846.60/245,102.91
  6. Step 6: Final answer
    x = 187,976.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.