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Finding the Fourth Proportional to 220,565.25, 330,847.88 and 54,353.25

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Solution

The fourth proportional to 220,565.25, 330,847.88 and 54,353.25 is: 81,529.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,565.25 : 330,847.88 = 54,353.25 : x
  2. Step 2: Convert to fraction form
    220,565.25/330,847.88 = 54,353.25/x
  3. Step 3: Cross multiply
    220,565.25x = 330,847.88 × 54,353.25
  4. Step 4: Simplify right side
    220,565.25x = 17,982,657,261.84
  5. Step 5: Solve for x
    x = 17,982,657,261.84/220,565.25
  6. Step 6: Final answer
    x = 81,529.88

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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.