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Finding the Fourth Proportional to 226,430.64, 339,695.04 and 68,671.20

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Solution

The fourth proportional to 226,430.64, 339,695.04 and 68,671.20 is: 103,021.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,430.64 : 339,695.04 = 68,671.20 : x
  2. Step 2: Convert to fraction form
    226,430.64/339,695.04 = 68,671.20/x
  3. Step 3: Cross multiply
    226,430.64x = 339,695.04 × 68,671.20
  4. Step 4: Simplify right side
    226,430.64x = 23,327,266,030.85
  5. Step 5: Solve for x
    x = 23,327,266,030.85/226,430.64
  6. Step 6: Final answer
    x = 103,021.68

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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.