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Finding the Fourth Proportional to 220,878.40, 330,825.52 and 181,512.40

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Solution

The fourth proportional to 220,878.40, 330,825.52 and 181,512.40 is: 271,864.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,878.40 : 330,825.52 = 181,512.40 : x
  2. Step 2: Convert to fraction form
    220,878.40/330,825.52 = 181,512.40/x
  3. Step 3: Cross multiply
    220,878.40x = 330,825.52 × 181,512.40
  4. Step 4: Simplify right side
    220,878.40x = 60,048,934,116.45
  5. Step 5: Solve for x
    x = 60,048,934,116.45/220,878.40
  6. Step 6: Final answer
    x = 271,864.22

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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.