Home / 268,248.32-402,414.24-81,215.36

Finding the Fourth Proportional to 268,248.32, 402,414.24 and 81,215.36

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Solution

The fourth proportional to 268,248.32, 402,414.24 and 81,215.36 is: 121,835.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,248.32 : 402,414.24 = 81,215.36 : x
  2. Step 2: Convert to fraction form
    268,248.32/402,414.24 = 81,215.36/x
  3. Step 3: Cross multiply
    268,248.32x = 402,414.24 × 81,215.36
  4. Step 4: Simplify right side
    268,248.32x = 32,682,217,370.73
  5. Step 5: Solve for x
    x = 32,682,217,370.73/268,248.32
  6. Step 6: Final answer
    x = 121,835.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.