Home / 259,117.38-388,381.23-157,691.68

Finding the Fourth Proportional to 259,117.38, 388,381.23 and 157,691.68

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Solution

The fourth proportional to 259,117.38, 388,381.23 and 157,691.68 is: 236,358.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,117.38 : 388,381.23 = 157,691.68 : x
  2. Step 2: Convert to fraction form
    259,117.38/388,381.23 = 157,691.68/x
  3. Step 3: Cross multiply
    259,117.38x = 388,381.23 × 157,691.68
  4. Step 4: Simplify right side
    259,117.38x = 61,244,487,668.21
  5. Step 5: Solve for x
    x = 61,244,487,668.21/259,117.38
  6. Step 6: Final answer
    x = 236,358.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.