Home / 257,902.18-355,912.05-144,731.86

Finding the Fourth Proportional to 257,902.18, 355,912.05 and 144,731.86

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Solution

The fourth proportional to 257,902.18, 355,912.05 and 144,731.86 is: 199,733.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,902.18 : 355,912.05 = 144,731.86 : x
  2. Step 2: Convert to fraction form
    257,902.18/355,912.05 = 144,731.86/x
  3. Step 3: Cross multiply
    257,902.18x = 355,912.05 × 144,731.86
  4. Step 4: Simplify right side
    257,902.18x = 51,511,812,992.91
  5. Step 5: Solve for x
    x = 51,511,812,992.91/257,902.18
  6. Step 6: Final answer
    x = 199,733.92

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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.