Home / 245,109.48-338,198.61-143,088.65

Finding the Fourth Proportional to 245,109.48, 338,198.61 and 143,088.65

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Solution

The fourth proportional to 245,109.48, 338,198.61 and 143,088.65 is: 197,431.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,109.48 : 338,198.61 = 143,088.65 : x
  2. Step 2: Convert to fraction form
    245,109.48/338,198.61 = 143,088.65/x
  3. Step 3: Cross multiply
    245,109.48x = 338,198.61 × 143,088.65
  4. Step 4: Simplify right side
    245,109.48x = 48,392,380,845.78
  5. Step 5: Solve for x
    x = 48,392,380,845.78/245,109.48
  6. Step 6: Final answer
    x = 197,431.70

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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.