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Finding the Fourth Proportional to 384,904.44, 531,169.92 and 215,134.92

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Solution

The fourth proportional to 384,904.44, 531,169.92 and 215,134.92 is: 296,887.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,904.44 : 531,169.92 = 215,134.92 : x
  2. Step 2: Convert to fraction form
    384,904.44/531,169.92 = 215,134.92/x
  3. Step 3: Cross multiply
    384,904.44x = 531,169.92 × 215,134.92
  4. Step 4: Simplify right side
    384,904.44x = 114,273,198,245.61
  5. Step 5: Solve for x
    x = 114,273,198,245.61/384,904.44
  6. Step 6: Final answer
    x = 296,887.19

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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.