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Finding the Fourth Proportional to 148,640.86, 222,960.88 and 36,319.78

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Solution

The fourth proportional to 148,640.86, 222,960.88 and 36,319.78 is: 54,479.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,640.86 : 222,960.88 = 36,319.78 : x
  2. Step 2: Convert to fraction form
    148,640.86/222,960.88 = 36,319.78/x
  3. Step 3: Cross multiply
    148,640.86x = 222,960.88 × 36,319.78
  4. Step 4: Simplify right side
    148,640.86x = 8,097,890,110.21
  5. Step 5: Solve for x
    x = 8,097,890,110.21/148,640.86
  6. Step 6: Final answer
    x = 54,479.57

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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.