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Finding the Fourth Proportional to 192,138.60, 288,838.32 and 178,266.12

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Solution

The fourth proportional to 192,138.60, 288,838.32 and 178,266.12 is: 267,984.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,138.60 : 288,838.32 = 178,266.12 : x
  2. Step 2: Convert to fraction form
    192,138.60/288,838.32 = 178,266.12/x
  3. Step 3: Cross multiply
    192,138.60x = 288,838.32 × 178,266.12
  4. Step 4: Simplify right side
    192,138.60x = 51,490,086,613.72
  5. Step 5: Solve for x
    x = 51,490,086,613.72/192,138.60
  6. Step 6: Final answer
    x = 267,984.08

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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.