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Finding the Fourth Proportional to 149,212.80, 223,819.20 and 60,469.20

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Solution

The fourth proportional to 149,212.80, 223,819.20 and 60,469.20 is: 90,703.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,212.80 : 223,819.20 = 60,469.20 : x
  2. Step 2: Convert to fraction form
    149,212.80/223,819.20 = 60,469.20/x
  3. Step 3: Cross multiply
    149,212.80x = 223,819.20 × 60,469.20
  4. Step 4: Simplify right side
    149,212.80x = 13,534,167,968.64
  5. Step 5: Solve for x
    x = 13,534,167,968.64/149,212.80
  6. Step 6: Final answer
    x = 90,703.80

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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.