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Finding the Fourth Proportional to 231,317.80, 323,430.20 and 231,317.80

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Solution

The fourth proportional to 231,317.80, 323,430.20 and 231,317.80 is: 323,430.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,317.80 : 323,430.20 = 231,317.80 : x
  2. Step 2: Convert to fraction form
    231,317.80/323,430.20 = 231,317.80/x
  3. Step 3: Cross multiply
    231,317.80x = 323,430.20 × 231,317.80
  4. Step 4: Simplify right side
    231,317.80x = 74,815,162,317.56
  5. Step 5: Solve for x
    x = 74,815,162,317.56/231,317.80
  6. Step 6: Final answer
    x = 323,430.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.