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Finding the Fourth Proportional to 226,421.60, 339,632.40 and 68,642.24

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Solution

The fourth proportional to 226,421.60, 339,632.40 and 68,642.24 is: 102,963.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,421.60 : 339,632.40 = 68,642.24 : x
  2. Step 2: Convert to fraction form
    226,421.60/339,632.40 = 68,642.24/x
  3. Step 3: Cross multiply
    226,421.60x = 339,632.40 × 68,642.24
  4. Step 4: Simplify right side
    226,421.60x = 23,313,128,712.58
  5. Step 5: Solve for x
    x = 23,313,128,712.58/226,421.60
  6. Step 6: Final answer
    x = 102,963.36

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.