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Finding the Fourth Proportional to 145,747, 218,620.50 and 40,568.70

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Solution

The fourth proportional to 145,747, 218,620.50 and 40,568.70 is: 60,853.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,747 : 218,620.50 = 40,568.70 : x
  2. Step 2: Convert to fraction form
    145,747/218,620.50 = 40,568.70/x
  3. Step 3: Cross multiply
    145,747x = 218,620.50 × 40,568.70
  4. Step 4: Simplify right side
    145,747x = 8,869,149,478.35
  5. Step 5: Solve for x
    x = 8,869,149,478.35/145,747
  6. Step 6: Final answer
    x = 60,853.05

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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.