Home / 259,118.38-388,382.73-157,692.68

Finding the Fourth Proportional to 259,118.38, 388,382.73 and 157,692.68

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Solution

The fourth proportional to 259,118.38, 388,382.73 and 157,692.68 is: 236,359.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,118.38 : 388,382.73 = 157,692.68 : x
  2. Step 2: Convert to fraction form
    259,118.38/388,382.73 = 157,692.68/x
  3. Step 3: Cross multiply
    259,118.38x = 388,382.73 × 157,692.68
  4. Step 4: Simplify right side
    259,118.38x = 61,245,113,559.42
  5. Step 5: Solve for x
    x = 61,245,113,559.42/259,118.38
  6. Step 6: Final answer
    x = 236,359.59

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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.