Home / 385,337.11-531,757.58-213,245.03

Finding the Fourth Proportional to 385,337.11, 531,757.58 and 213,245.03

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Solution

The fourth proportional to 385,337.11, 531,757.58 and 213,245.03 is: 294,273.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,337.11 : 531,757.58 = 213,245.03 : x
  2. Step 2: Convert to fraction form
    385,337.11/531,757.58 = 213,245.03/x
  3. Step 3: Cross multiply
    385,337.11x = 531,757.58 × 213,245.03
  4. Step 4: Simplify right side
    385,337.11x = 113,394,659,267.80
  5. Step 5: Solve for x
    x = 113,394,659,267.80/385,337.11
  6. Step 6: Final answer
    x = 294,273.91

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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.