Home / 253,023.05-379,528.52-82,244.57

Finding the Fourth Proportional to 253,023.05, 379,528.52 and 82,244.57

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Solution

The fourth proportional to 253,023.05, 379,528.52 and 82,244.57 is: 123,364.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,023.05 : 379,528.52 = 82,244.57 : x
  2. Step 2: Convert to fraction form
    253,023.05/379,528.52 = 82,244.57/x
  3. Step 3: Cross multiply
    253,023.05x = 379,528.52 × 82,244.57
  4. Step 4: Simplify right side
    253,023.05x = 31,214,157,621.27
  5. Step 5: Solve for x
    x = 31,214,157,621.27/253,023.05
  6. Step 6: Final answer
    x = 123,364.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.