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Finding the Fourth Proportional to 149,210.40, 223,815.60 and 132,880.80

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Solution

The fourth proportional to 149,210.40, 223,815.60 and 132,880.80 is: 199,321.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,210.40 : 223,815.60 = 132,880.80 : x
  2. Step 2: Convert to fraction form
    149,210.40/223,815.60 = 132,880.80/x
  3. Step 3: Cross multiply
    149,210.40x = 223,815.60 × 132,880.80
  4. Step 4: Simplify right side
    149,210.40x = 29,740,795,980.48
  5. Step 5: Solve for x
    x = 29,740,795,980.48/149,210.40
  6. Step 6: Final answer
    x = 199,321.20

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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.