Home / 257,908.38-355,939.12-144,731.58

Finding the Fourth Proportional to 257,908.38, 355,939.12 and 144,731.58

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Solution

The fourth proportional to 257,908.38, 355,939.12 and 144,731.58 is: 199,743.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,908.38 : 355,939.12 = 144,731.58 : x
  2. Step 2: Convert to fraction form
    257,908.38/355,939.12 = 144,731.58/x
  3. Step 3: Cross multiply
    257,908.38x = 355,939.12 × 144,731.58
  4. Step 4: Simplify right side
    257,908.38x = 51,515,631,221.41
  5. Step 5: Solve for x
    x = 51,515,631,221.41/257,908.38
  6. Step 6: Final answer
    x = 199,743.92

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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.