Home / 257,520.20-355,371.50-142,799.29

Finding the Fourth Proportional to 257,520.20, 355,371.50 and 142,799.29

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Solution

The fourth proportional to 257,520.20, 355,371.50 and 142,799.29 is: 197,059.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,520.20 : 355,371.50 = 142,799.29 : x
  2. Step 2: Convert to fraction form
    257,520.20/355,371.50 = 142,799.29/x
  3. Step 3: Cross multiply
    257,520.20x = 355,371.50 × 142,799.29
  4. Step 4: Simplify right side
    257,520.20x = 50,746,797,354.80
  5. Step 5: Solve for x
    x = 50,746,797,354.80/257,520.20
  6. Step 6: Final answer
    x = 197,059.49

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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.