Home / 245,109.26-338,198.31-143,088.42

Finding the Fourth Proportional to 245,109.26, 338,198.31 and 143,088.42

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Solution

The fourth proportional to 245,109.26, 338,198.31 and 143,088.42 is: 197,431.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,109.26 : 338,198.31 = 143,088.42 : x
  2. Step 2: Convert to fraction form
    245,109.26/338,198.31 = 143,088.42/x
  3. Step 3: Cross multiply
    245,109.26x = 338,198.31 × 143,088.42
  4. Step 4: Simplify right side
    245,109.26x = 48,392,260,133.58
  5. Step 5: Solve for x
    x = 48,392,260,133.58/245,109.26
  6. Step 6: Final answer
    x = 197,431.38

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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.