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Finding the Fourth Proportional to 288,371.53, 395,062.40 and 277,589.91

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Solution

The fourth proportional to 288,371.53, 395,062.40 and 277,589.91 is: 380,291.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,371.53 : 395,062.40 = 277,589.91 : x
  2. Step 2: Convert to fraction form
    288,371.53/395,062.40 = 277,589.91/x
  3. Step 3: Cross multiply
    288,371.53x = 395,062.40 × 277,589.91
  4. Step 4: Simplify right side
    288,371.53x = 109,665,336,060.38
  5. Step 5: Solve for x
    x = 109,665,336,060.38/288,371.53
  6. Step 6: Final answer
    x = 380,291.83

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.