Home / 238,178.24-356,800.25-138,128.23

Finding the Fourth Proportional to 238,178.24, 356,800.25 and 138,128.23

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Solution

The fourth proportional to 238,178.24, 356,800.25 and 138,128.23 is: 206,921.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,178.24 : 356,800.25 = 138,128.23 : x
  2. Step 2: Convert to fraction form
    238,178.24/356,800.25 = 138,128.23/x
  3. Step 3: Cross multiply
    238,178.24x = 356,800.25 × 138,128.23
  4. Step 4: Simplify right side
    238,178.24x = 49,284,187,787.38
  5. Step 5: Solve for x
    x = 49,284,187,787.38/238,178.24
  6. Step 6: Final answer
    x = 206,921.46

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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.