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Finding the Fourth Proportional to 220,588.08, 330,720.84 and 70,743.12

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Solution

The fourth proportional to 220,588.08, 330,720.84 and 70,743.12 is: 106,062.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,588.08 : 330,720.84 = 70,743.12 : x
  2. Step 2: Convert to fraction form
    220,588.08/330,720.84 = 70,743.12/x
  3. Step 3: Cross multiply
    220,588.08x = 330,720.84 × 70,743.12
  4. Step 4: Simplify right side
    220,588.08x = 23,396,224,070.62
  5. Step 5: Solve for x
    x = 23,396,224,070.62/220,588.08
  6. Step 6: Final answer
    x = 106,062.96

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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.