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Finding the Fourth Proportional to 221,467.32, 332,253.90 and 71,707.77

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Solution

The fourth proportional to 221,467.32, 332,253.90 and 71,707.77 is: 107,578.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,467.32 : 332,253.90 = 71,707.77 : x
  2. Step 2: Convert to fraction form
    221,467.32/332,253.90 = 71,707.77/x
  3. Step 3: Cross multiply
    221,467.32x = 332,253.90 × 71,707.77
  4. Step 4: Simplify right side
    221,467.32x = 23,825,186,242.80
  5. Step 5: Solve for x
    x = 23,825,186,242.80/221,467.32
  6. Step 6: Final answer
    x = 107,578.79

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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.