Home / 245,654.27-338,878.69-143,613.20

Finding the Fourth Proportional to 245,654.27, 338,878.69 and 143,613.20

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Solution

The fourth proportional to 245,654.27, 338,878.69 and 143,613.20 is: 198,113.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,654.27 : 338,878.69 = 143,613.20 : x
  2. Step 2: Convert to fraction form
    245,654.27/338,878.69 = 143,613.20/x
  3. Step 3: Cross multiply
    245,654.27x = 338,878.69 × 143,613.20
  4. Step 4: Simplify right side
    245,654.27x = 48,667,453,570.87
  5. Step 5: Solve for x
    x = 48,667,453,570.87/245,654.27
  6. Step 6: Final answer
    x = 198,113.61

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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.