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Finding the Fourth Proportional to 226,478.60, 339,750.30 and 68,719.40

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Solution

The fourth proportional to 226,478.60, 339,750.30 and 68,719.40 is: 103,088.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,478.60 : 339,750.30 = 68,719.40 : x
  2. Step 2: Convert to fraction form
    226,478.60/339,750.30 = 68,719.40/x
  3. Step 3: Cross multiply
    226,478.60x = 339,750.30 × 68,719.40
  4. Step 4: Simplify right side
    226,478.60x = 23,347,436,765.82
  5. Step 5: Solve for x
    x = 23,347,436,765.82/226,478.60
  6. Step 6: Final answer
    x = 103,088.93

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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.