Home / 245,247.24-338,450.10-137,819.40

Finding the Fourth Proportional to 245,247.24, 338,450.10 and 137,819.40

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Solution

The fourth proportional to 245,247.24, 338,450.10 and 137,819.40 is: 190,195.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,247.24 : 338,450.10 = 137,819.40 : x
  2. Step 2: Convert to fraction form
    245,247.24/338,450.10 = 137,819.40/x
  3. Step 3: Cross multiply
    245,247.24x = 338,450.10 × 137,819.40
  4. Step 4: Simplify right side
    245,247.24x = 46,644,989,711.94
  5. Step 5: Solve for x
    x = 46,644,989,711.94/245,247.24
  6. Step 6: Final answer
    x = 190,195.78

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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.