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Finding the Fourth Proportional to 149,504.40, 223,819.20 and 99,640.80

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Solution

The fourth proportional to 149,504.40, 223,819.20 and 99,640.80 is: 149,169.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,504.40 : 223,819.20 = 99,640.80 : x
  2. Step 2: Convert to fraction form
    149,504.40/223,819.20 = 99,640.80/x
  3. Step 3: Cross multiply
    149,504.40x = 223,819.20 × 99,640.80
  4. Step 4: Simplify right side
    149,504.40x = 22,301,524,143.36
  5. Step 5: Solve for x
    x = 22,301,524,143.36/149,504.40
  6. Step 6: Final answer
    x = 149,169.68

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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.