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Finding the Fourth Proportional to 385,512.95, 532,249.37 and 247,747.75

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Solution

The fourth proportional to 385,512.95, 532,249.37 and 247,747.75 is: 342,047.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,512.95 : 532,249.37 = 247,747.75 : x
  2. Step 2: Convert to fraction form
    385,512.95/532,249.37 = 247,747.75/x
  3. Step 3: Cross multiply
    385,512.95x = 532,249.37 × 247,747.75
  4. Step 4: Simplify right side
    385,512.95x = 131,863,579,956.43
  5. Step 5: Solve for x
    x = 131,863,579,956.43/385,512.95
  6. Step 6: Final answer
    x = 342,047.08

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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.