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Finding the Fourth Proportional to 145,850.60, 218,748.90 and 40,647.80

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Solution

The fourth proportional to 145,850.60, 218,748.90 and 40,647.80 is: 60,964.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,850.60 : 218,748.90 = 40,647.80 : x
  2. Step 2: Convert to fraction form
    145,850.60/218,748.90 = 40,647.80/x
  3. Step 3: Cross multiply
    145,850.60x = 218,748.90 × 40,647.80
  4. Step 4: Simplify right side
    145,850.60x = 8,891,661,537.42
  5. Step 5: Solve for x
    x = 8,891,661,537.42/145,850.60
  6. Step 6: Final answer
    x = 60,964.18

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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.