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Finding the Fourth Proportional to 220,110.90, 330,020.55 and 79,851.30

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Solution

The fourth proportional to 220,110.90, 330,020.55 and 79,851.30 is: 119,724.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,110.90 : 330,020.55 = 79,851.30 : x
  2. Step 2: Convert to fraction form
    220,110.90/330,020.55 = 79,851.30/x
  3. Step 3: Cross multiply
    220,110.90x = 330,020.55 × 79,851.30
  4. Step 4: Simplify right side
    220,110.90x = 26,352,569,944.22
  5. Step 5: Solve for x
    x = 26,352,569,944.22/220,110.90
  6. Step 6: Final answer
    x = 119,724.06

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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.