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Finding the Fourth Proportional to 229,926.90, 317,309.49 and 129,324.90

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Solution

The fourth proportional to 229,926.90, 317,309.49 and 129,324.90 is: 178,474.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,926.90 : 317,309.49 = 129,324.90 : x
  2. Step 2: Convert to fraction form
    229,926.90/317,309.49 = 129,324.90/x
  3. Step 3: Cross multiply
    229,926.90x = 317,309.49 × 129,324.90
  4. Step 4: Simplify right side
    229,926.90x = 41,036,018,063.30
  5. Step 5: Solve for x
    x = 41,036,018,063.30/229,926.90
  6. Step 6: Final answer
    x = 178,474.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.