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Finding the Fourth Proportional to 220,064.43, 330,219.26 and 118,860.43

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Solution

The fourth proportional to 220,064.43, 330,219.26 and 118,860.43 is: 178,356.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,064.43 : 330,219.26 = 118,860.43 : x
  2. Step 2: Convert to fraction form
    220,064.43/330,219.26 = 118,860.43/x
  3. Step 3: Cross multiply
    220,064.43x = 330,219.26 × 118,860.43
  4. Step 4: Simplify right side
    220,064.43x = 39,250,003,621.26
  5. Step 5: Solve for x
    x = 39,250,003,621.26/220,064.43
  6. Step 6: Final answer
    x = 178,356.88

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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.