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Finding the Fourth Proportional to 259,375.41, 389,030.31 and 69,850.92

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Solution

The fourth proportional to 259,375.41, 389,030.31 and 69,850.92 is: 104,767.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,375.41 : 389,030.31 = 69,850.92 : x
  2. Step 2: Convert to fraction form
    259,375.41/389,030.31 = 69,850.92/x
  3. Step 3: Cross multiply
    259,375.41x = 389,030.31 × 69,850.92
  4. Step 4: Simplify right side
    259,375.41x = 27,174,125,061.39
  5. Step 5: Solve for x
    x = 27,174,125,061.39/259,375.41
  6. Step 6: Final answer
    x = 104,767.55

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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.