Home / 257,938.38-355,987.71-144,761.04

Finding the Fourth Proportional to 257,938.38, 355,987.71 and 144,761.04

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Solution

The fourth proportional to 257,938.38, 355,987.71 and 144,761.04 is: 199,788.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,938.38 : 355,987.71 = 144,761.04 : x
  2. Step 2: Convert to fraction form
    257,938.38/355,987.71 = 144,761.04/x
  3. Step 3: Cross multiply
    257,938.38x = 355,987.71 × 144,761.04
  4. Step 4: Simplify right side
    257,938.38x = 51,533,151,126.82
  5. Step 5: Solve for x
    x = 51,533,151,126.82/257,938.38
  6. Step 6: Final answer
    x = 199,788.61

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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.