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Finding the Fourth Proportional to 243,731.92, 365,179.68 and 219,079.84

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Solution

The fourth proportional to 243,731.92, 365,179.68 and 219,079.84 is: 328,243.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,731.92 : 365,179.68 = 219,079.84 : x
  2. Step 2: Convert to fraction form
    243,731.92/365,179.68 = 219,079.84/x
  3. Step 3: Cross multiply
    243,731.92x = 365,179.68 × 219,079.84
  4. Step 4: Simplify right side
    243,731.92x = 80,003,505,865.65
  5. Step 5: Solve for x
    x = 80,003,505,865.65/243,731.92
  6. Step 6: Final answer
    x = 328,243.86

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1.5x scale

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.