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Finding the Fourth Proportional to 230,176.80, 345,265.20 and 72,453.60

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Solution

The fourth proportional to 230,176.80, 345,265.20 and 72,453.60 is: 108,680.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,176.80 : 345,265.20 = 72,453.60 : x
  2. Step 2: Convert to fraction form
    230,176.80/345,265.20 = 72,453.60/x
  3. Step 3: Cross multiply
    230,176.80x = 345,265.20 × 72,453.60
  4. Step 4: Simplify right side
    230,176.80x = 25,015,706,694.72
  5. Step 5: Solve for x
    x = 25,015,706,694.72/230,176.80
  6. Step 6: Final answer
    x = 108,680.40

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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.