Home / 258,221.03-356,286.63-156,243.95

Finding the Fourth Proportional to 258,221.03, 356,286.63 and 156,243.95

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Solution

The fourth proportional to 258,221.03, 356,286.63 and 156,243.95 is: 215,581.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,221.03 : 356,286.63 = 156,243.95 : x
  2. Step 2: Convert to fraction form
    258,221.03/356,286.63 = 156,243.95/x
  3. Step 3: Cross multiply
    258,221.03x = 356,286.63 × 156,243.95
  4. Step 4: Simplify right side
    258,221.03x = 55,667,630,403.39
  5. Step 5: Solve for x
    x = 55,667,630,403.39/258,221.03
  6. Step 6: Final answer
    x = 215,581.32

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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.