Home / 245,144.80-338,339.19-229,135.96

Finding the Fourth Proportional to 245,144.80, 338,339.19 and 229,135.96

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Solution

The fourth proportional to 245,144.80, 338,339.19 and 229,135.96 is: 316,244.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,144.80 : 338,339.19 = 229,135.96 : x
  2. Step 2: Convert to fraction form
    245,144.80/338,339.19 = 229,135.96/x
  3. Step 3: Cross multiply
    245,144.80x = 338,339.19 × 229,135.96
  4. Step 4: Simplify right side
    245,144.80x = 77,525,675,106.27
  5. Step 5: Solve for x
    x = 77,525,675,106.27/245,144.80
  6. Step 6: Final answer
    x = 316,244.42

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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.