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Finding the Fourth Proportional to 385,951.11, 532,604.55 and 213,867.57

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Solution

The fourth proportional to 385,951.11, 532,604.55 and 213,867.57 is: 295,132.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,951.11 : 532,604.55 = 213,867.57 : x
  2. Step 2: Convert to fraction form
    385,951.11/532,604.55 = 213,867.57/x
  3. Step 3: Cross multiply
    385,951.11x = 532,604.55 × 213,867.57
  4. Step 4: Simplify right side
    385,951.11x = 113,906,840,879.44
  5. Step 5: Solve for x
    x = 113,906,840,879.44/385,951.11
  6. Step 6: Final answer
    x = 295,132.82

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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.