Home / 257,911.38-355,943.26-144,734.58

Finding the Fourth Proportional to 257,911.38, 355,943.26 and 144,734.58

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Solution

The fourth proportional to 257,911.38, 355,943.26 and 144,734.58 is: 199,748.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,911.38 : 355,943.26 = 144,734.58 : x
  2. Step 2: Convert to fraction form
    257,911.38/355,943.26 = 144,734.58/x
  3. Step 3: Cross multiply
    257,911.38x = 355,943.26 × 144,734.58
  4. Step 4: Simplify right side
    257,911.38x = 51,517,298,239.93
  5. Step 5: Solve for x
    x = 51,517,298,239.93/257,911.38
  6. Step 6: Final answer
    x = 199,748.06

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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.