Home / 221,079.30-331,424.55-132,368.10

Finding the Fourth Proportional to 221,079.30, 331,424.55 and 132,368.10

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Solution

The fourth proportional to 221,079.30, 331,424.55 and 132,368.10 is: 198,435.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,079.30 : 331,424.55 = 132,368.10 : x
  2. Step 2: Convert to fraction form
    221,079.30/331,424.55 = 132,368.10/x
  3. Step 3: Cross multiply
    221,079.30x = 331,424.55 × 132,368.10
  4. Step 4: Simplify right side
    221,079.30x = 43,870,037,976.86
  5. Step 5: Solve for x
    x = 43,870,037,976.86/221,079.30
  6. Step 6: Final answer
    x = 198,435.76

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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.