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Finding the Fourth Proportional to 192,175.20, 288,262.80 and 73,850.40

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Solution

The fourth proportional to 192,175.20, 288,262.80 and 73,850.40 is: 110,775.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,175.20 : 288,262.80 = 73,850.40 : x
  2. Step 2: Convert to fraction form
    192,175.20/288,262.80 = 73,850.40/x
  3. Step 3: Cross multiply
    192,175.20x = 288,262.80 × 73,850.40
  4. Step 4: Simplify right side
    192,175.20x = 21,288,323,085.12
  5. Step 5: Solve for x
    x = 21,288,323,085.12/192,175.20
  6. Step 6: Final answer
    x = 110,775.60

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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.