Home / 226,685.08-312,819.13-123,315.85

Finding the Fourth Proportional to 226,685.08, 312,819.13 and 123,315.85

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Solution

The fourth proportional to 226,685.08, 312,819.13 and 123,315.85 is: 170,172.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,685.08 : 312,819.13 = 123,315.85 : x
  2. Step 2: Convert to fraction form
    226,685.08/312,819.13 = 123,315.85/x
  3. Step 3: Cross multiply
    226,685.08x = 312,819.13 × 123,315.85
  4. Step 4: Simplify right side
    226,685.08x = 38,575,556,912.21
  5. Step 5: Solve for x
    x = 38,575,556,912.21/226,685.08
  6. Step 6: Final answer
    x = 170,172.46

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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.