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Finding the Fourth Proportional to 221,438.88, 332,108.64 and 63,632.16

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Solution

The fourth proportional to 221,438.88, 332,108.64 and 63,632.16 is: 95,433.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,438.88 : 332,108.64 = 63,632.16 : x
  2. Step 2: Convert to fraction form
    221,438.88/332,108.64 = 63,632.16/x
  3. Step 3: Cross multiply
    221,438.88x = 332,108.64 × 63,632.16
  4. Step 4: Simplify right side
    221,438.88x = 21,132,790,117.86
  5. Step 5: Solve for x
    x = 21,132,790,117.86/221,438.88
  6. Step 6: Final answer
    x = 95,433.96

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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.