Home / 221,472.20-332,256.90-71,719.40

Finding the Fourth Proportional to 221,472.20, 332,256.90 and 71,719.40

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Solution

The fourth proportional to 221,472.20, 332,256.90 and 71,719.40 is: 107,594.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,472.20 : 332,256.90 = 71,719.40 : x
  2. Step 2: Convert to fraction form
    221,472.20/332,256.90 = 71,719.40/x
  3. Step 3: Cross multiply
    221,472.20x = 332,256.90 × 71,719.40
  4. Step 4: Simplify right side
    221,472.20x = 23,829,265,513.86
  5. Step 5: Solve for x
    x = 23,829,265,513.86/221,472.20
  6. Step 6: Final answer
    x = 107,594.84

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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.