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Finding the Fourth Proportional to 216,469.08, 298,856.52 and 135,965.52

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Solution

The fourth proportional to 216,469.08, 298,856.52 and 135,965.52 is: 187,713.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,469.08 : 298,856.52 = 135,965.52 : x
  2. Step 2: Convert to fraction form
    216,469.08/298,856.52 = 135,965.52/x
  3. Step 3: Cross multiply
    216,469.08x = 298,856.52 × 135,965.52
  4. Step 4: Simplify right side
    216,469.08x = 40,634,182,147.19
  5. Step 5: Solve for x
    x = 40,634,182,147.19/216,469.08
  6. Step 6: Final answer
    x = 187,713.56

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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.