Home / 385,232.43-531,591.89-215,433.75

Finding the Fourth Proportional to 385,232.43, 531,591.89 and 215,433.75

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Solution

The fourth proportional to 385,232.43, 531,591.89 and 215,433.75 is: 297,282.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,232.43 : 531,591.89 = 215,433.75 : x
  2. Step 2: Convert to fraction form
    385,232.43/531,591.89 = 215,433.75/x
  3. Step 3: Cross multiply
    385,232.43x = 531,591.89 × 215,433.75
  4. Step 4: Simplify right side
    385,232.43x = 114,522,833,255.12
  5. Step 5: Solve for x
    x = 114,522,833,255.12/385,232.43
  6. Step 6: Final answer
    x = 297,282.43

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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.