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Finding the Fourth Proportional to 240,524.64, 360,441.90 and 135,121.86

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Solution

The fourth proportional to 240,524.64, 360,441.90 and 135,121.86 is: 202,488.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,524.64 : 360,441.90 = 135,121.86 : x
  2. Step 2: Convert to fraction form
    240,524.64/360,441.90 = 135,121.86/x
  3. Step 3: Cross multiply
    240,524.64x = 360,441.90 × 135,121.86
  4. Step 4: Simplify right side
    240,524.64x = 48,703,579,949.93
  5. Step 5: Solve for x
    x = 48,703,579,949.93/240,524.64
  6. Step 6: Final answer
    x = 202,488.94

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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.