Home / 257,634.30-355,577.87-142,949.85

Finding the Fourth Proportional to 257,634.30, 355,577.87 and 142,949.85

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Solution

The fourth proportional to 257,634.30, 355,577.87 and 142,949.85 is: 197,294.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,634.30 : 355,577.87 = 142,949.85 : x
  2. Step 2: Convert to fraction form
    257,634.30/355,577.87 = 142,949.85/x
  3. Step 3: Cross multiply
    257,634.30x = 355,577.87 × 142,949.85
  4. Step 4: Simplify right side
    257,634.30x = 50,829,802,203.78
  5. Step 5: Solve for x
    x = 50,829,802,203.78/257,634.30
  6. Step 6: Final answer
    x = 197,294.39

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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.