Home / 258,000.05-356,043.57-143,286.10

Finding the Fourth Proportional to 258,000.05, 356,043.57 and 143,286.10

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Solution

The fourth proportional to 258,000.05, 356,043.57 and 143,286.10 is: 197,736.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,000.05 : 356,043.57 = 143,286.10 : x
  2. Step 2: Convert to fraction form
    258,000.05/356,043.57 = 143,286.10/x
  3. Step 3: Cross multiply
    258,000.05x = 356,043.57 × 143,286.10
  4. Step 4: Simplify right side
    258,000.05x = 51,016,093,147.95
  5. Step 5: Solve for x
    x = 51,016,093,147.95/258,000.05
  6. Step 6: Final answer
    x = 197,736.75

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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.