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Finding the Fourth Proportional to 215,954.54, 297,856.60 and 158,575.85

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Solution

The fourth proportional to 215,954.54, 297,856.60 and 158,575.85 is: 218,716.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,954.54 : 297,856.60 = 158,575.85 : x
  2. Step 2: Convert to fraction form
    215,954.54/297,856.60 = 158,575.85/x
  3. Step 3: Cross multiply
    215,954.54x = 297,856.60 × 158,575.85
  4. Step 4: Simplify right side
    215,954.54x = 47,232,861,637.39
  5. Step 5: Solve for x
    x = 47,232,861,637.39/215,954.54
  6. Step 6: Final answer
    x = 218,716.69

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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.