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Finding the Fourth Proportional to 215,879.48, 297,935.10 and 161,336.92

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Solution

The fourth proportional to 215,879.48, 297,935.10 and 161,336.92 is: 222,660.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,879.48 : 297,935.10 = 161,336.92 : x
  2. Step 2: Convert to fraction form
    215,879.48/297,935.10 = 161,336.92/x
  3. Step 3: Cross multiply
    215,879.48x = 297,935.10 × 161,336.92
  4. Step 4: Simplify right side
    215,879.48x = 48,067,931,393.89
  5. Step 5: Solve for x
    x = 48,067,931,393.89/215,879.48
  6. Step 6: Final answer
    x = 222,660.96

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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.