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Finding the Fourth Proportional to 258,391.03, 356,540.56 and 147,992.47

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Solution

The fourth proportional to 258,391.03, 356,540.56 and 147,992.47 is: 204,207.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,391.03 : 356,540.56 = 147,992.47 : x
  2. Step 2: Convert to fraction form
    258,391.03/356,540.56 = 147,992.47/x
  3. Step 3: Cross multiply
    258,391.03x = 356,540.56 × 147,992.47
  4. Step 4: Simplify right side
    258,391.03x = 52,765,318,129.58
  5. Step 5: Solve for x
    x = 52,765,318,129.58/258,391.03
  6. Step 6: Final answer
    x = 204,207.24

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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.