Home / 221,490.32-332,236.76-71,729.92

Finding the Fourth Proportional to 221,490.32, 332,236.76 and 71,729.92

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Solution

The fourth proportional to 221,490.32, 332,236.76 and 71,729.92 is: 107,595.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,490.32 : 332,236.76 = 71,729.92 : x
  2. Step 2: Convert to fraction form
    221,490.32/332,236.76 = 71,729.92/x
  3. Step 3: Cross multiply
    221,490.32x = 332,236.76 × 71,729.92
  4. Step 4: Simplify right side
    221,490.32x = 23,831,316,215.86
  5. Step 5: Solve for x
    x = 23,831,316,215.86/221,490.32
  6. Step 6: Final answer
    x = 107,595.29

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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.