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Finding the Fourth Proportional to 220,952.64, 331,472.28 and 87,808.08

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Solution

The fourth proportional to 220,952.64, 331,472.28 and 87,808.08 is: 131,729.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,952.64 : 331,472.28 = 87,808.08 : x
  2. Step 2: Convert to fraction form
    220,952.64/331,472.28 = 87,808.08/x
  3. Step 3: Cross multiply
    220,952.64x = 331,472.28 × 87,808.08
  4. Step 4: Simplify right side
    220,952.64x = 29,105,944,480.02
  5. Step 5: Solve for x
    x = 29,105,944,480.02/220,952.64
  6. Step 6: Final answer
    x = 131,729.34

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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.