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Finding the Fourth Proportional to 245,211.60, 367,817.40 and 218,773.20

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Solution

The fourth proportional to 245,211.60, 367,817.40 and 218,773.20 is: 328,159.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,211.60 : 367,817.40 = 218,773.20 : x
  2. Step 2: Convert to fraction form
    245,211.60/367,817.40 = 218,773.20/x
  3. Step 3: Cross multiply
    245,211.60x = 367,817.40 × 218,773.20
  4. Step 4: Simplify right side
    245,211.60x = 80,468,589,613.68
  5. Step 5: Solve for x
    x = 80,468,589,613.68/245,211.60
  6. Step 6: Final answer
    x = 328,159.80

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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.