Home / 257,753.36-355,701.57-143,032.43

Finding the Fourth Proportional to 257,753.36, 355,701.57 and 143,032.43

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Solution

The fourth proportional to 257,753.36, 355,701.57 and 143,032.43 is: 197,385.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,753.36 : 355,701.57 = 143,032.43 : x
  2. Step 2: Convert to fraction form
    257,753.36/355,701.57 = 143,032.43/x
  3. Step 3: Cross multiply
    257,753.36x = 355,701.57 × 143,032.43
  4. Step 4: Simplify right side
    257,753.36x = 50,876,859,911.92
  5. Step 5: Solve for x
    x = 50,876,859,911.92/257,753.36
  6. Step 6: Final answer
    x = 197,385.83

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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.