Home / 257,508.22-355,355.19-142,786.30

Finding the Fourth Proportional to 257,508.22, 355,355.19 and 142,786.30

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Solution

The fourth proportional to 257,508.22, 355,355.19 and 142,786.30 is: 197,041.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,508.22 : 355,355.19 = 142,786.30 : x
  2. Step 2: Convert to fraction form
    257,508.22/355,355.19 = 142,786.30/x
  3. Step 3: Cross multiply
    257,508.22x = 355,355.19 × 142,786.30
  4. Step 4: Simplify right side
    257,508.22x = 50,739,852,765.90
  5. Step 5: Solve for x
    x = 50,739,852,765.90/257,508.22
  6. Step 6: Final answer
    x = 197,041.68

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1.5x scale

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.