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Finding the Fourth Proportional to 259,009.62, 388,514.43 and 125,775.69

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Solution

The fourth proportional to 259,009.62, 388,514.43 and 125,775.69 is: 188,663.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,009.62 : 388,514.43 = 125,775.69 : x
  2. Step 2: Convert to fraction form
    259,009.62/388,514.43 = 125,775.69/x
  3. Step 3: Cross multiply
    259,009.62x = 388,514.43 × 125,775.69
  4. Step 4: Simplify right side
    259,009.62x = 48,865,670,508.21
  5. Step 5: Solve for x
    x = 48,865,670,508.21/259,009.62
  6. Step 6: Final answer
    x = 188,663.54

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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.