Home / 258,215.39-356,235.23-149,299.82

Finding the Fourth Proportional to 258,215.39, 356,235.23 and 149,299.82

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Solution

The fourth proportional to 258,215.39, 356,235.23 and 149,299.82 is: 205,974.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,215.39 : 356,235.23 = 149,299.82 : x
  2. Step 2: Convert to fraction form
    258,215.39/356,235.23 = 149,299.82/x
  3. Step 3: Cross multiply
    258,215.39x = 356,235.23 × 149,299.82
  4. Step 4: Simplify right side
    258,215.39x = 53,185,857,648.44
  5. Step 5: Solve for x
    x = 53,185,857,648.44/258,215.39
  6. Step 6: Final answer
    x = 205,974.77

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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.