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Finding the Fourth Proportional to 220,497.72, 330,549.66 and 80,157.48

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Solution

The fourth proportional to 220,497.72, 330,549.66 and 80,157.48 is: 120,164.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,497.72 : 330,549.66 = 80,157.48 : x
  2. Step 2: Convert to fraction form
    220,497.72/330,549.66 = 80,157.48/x
  3. Step 3: Cross multiply
    220,497.72x = 330,549.66 × 80,157.48
  4. Step 4: Simplify right side
    220,497.72x = 26,496,027,760.46
  5. Step 5: Solve for x
    x = 26,496,027,760.46/220,497.72
  6. Step 6: Final answer
    x = 120,164.63

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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.