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Finding the Fourth Proportional to 140,471.46, 210,675.78 and 40,609.44

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Solution

The fourth proportional to 140,471.46, 210,675.78 and 40,609.44 is: 60,905.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,471.46 : 210,675.78 = 40,609.44 : x
  2. Step 2: Convert to fraction form
    140,471.46/210,675.78 = 40,609.44/x
  3. Step 3: Cross multiply
    140,471.46x = 210,675.78 × 40,609.44
  4. Step 4: Simplify right side
    140,471.46x = 8,555,425,447.36
  5. Step 5: Solve for x
    x = 8,555,425,447.36/140,471.46
  6. Step 6: Final answer
    x = 60,905.08

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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.