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Finding the Fourth Proportional to 148,358.78, 222,830.85 and 127,469.42

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Solution

The fourth proportional to 148,358.78, 222,830.85 and 127,469.42 is: 191,455.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,358.78 : 222,830.85 = 127,469.42 : x
  2. Step 2: Convert to fraction form
    148,358.78/222,830.85 = 127,469.42/x
  3. Step 3: Cross multiply
    148,358.78x = 222,830.85 × 127,469.42
  4. Step 4: Simplify right side
    148,358.78x = 28,404,119,207.61
  5. Step 5: Solve for x
    x = 28,404,119,207.61/148,358.78
  6. Step 6: Final answer
    x = 191,455.60

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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.