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Finding the Fourth Proportional to 376,231.52, 564,015.03 and 287,879.49

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Solution

The fourth proportional to 376,231.52, 564,015.03 and 287,879.49 is: 431,565.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,231.52 : 564,015.03 = 287,879.49 : x
  2. Step 2: Convert to fraction form
    376,231.52/564,015.03 = 287,879.49/x
  3. Step 3: Cross multiply
    376,231.52x = 564,015.03 × 287,879.49
  4. Step 4: Simplify right side
    376,231.52x = 162,368,359,188.74
  5. Step 5: Solve for x
    x = 162,368,359,188.74/376,231.52
  6. Step 6: Final answer
    x = 431,565.01

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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.