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Finding the Fourth Proportional to 140,330.85, 210,470.85 and 40,466.49

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Solution

The fourth proportional to 140,330.85, 210,470.85 and 40,466.49 is: 60,692.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,330.85 : 210,470.85 = 40,466.49 : x
  2. Step 2: Convert to fraction form
    140,330.85/210,470.85 = 40,466.49/x
  3. Step 3: Cross multiply
    140,330.85x = 210,470.85 × 40,466.49
  4. Step 4: Simplify right side
    140,330.85x = 8,517,016,546.82
  5. Step 5: Solve for x
    x = 8,517,016,546.82/140,330.85
  6. Step 6: Final answer
    x = 60,692.40

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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.