Home / 245,145.80-338,340.57-229,136.96

Finding the Fourth Proportional to 245,145.80, 338,340.57 and 229,136.96

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Solution

The fourth proportional to 245,145.80, 338,340.57 and 229,136.96 is: 316,245.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,145.80 : 338,340.57 = 229,136.96 : x
  2. Step 2: Convert to fraction form
    245,145.80/338,340.57 = 229,136.96/x
  3. Step 3: Cross multiply
    245,145.80x = 338,340.57 × 229,136.96
  4. Step 4: Simplify right side
    245,145.80x = 77,526,329,654.47
  5. Step 5: Solve for x
    x = 77,526,329,654.47/245,145.80
  6. Step 6: Final answer
    x = 316,245.80

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1.5x scale

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.