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Finding the Fourth Proportional to 376,231.47, 564,345.68 and 136,289.28

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Solution

The fourth proportional to 376,231.47, 564,345.68 and 136,289.28 is: 204,433.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,231.47 : 564,345.68 = 136,289.28 : x
  2. Step 2: Convert to fraction form
    376,231.47/564,345.68 = 136,289.28/x
  3. Step 3: Cross multiply
    376,231.47x = 564,345.68 × 136,289.28
  4. Step 4: Simplify right side
    376,231.47x = 76,914,265,716.86
  5. Step 5: Solve for x
    x = 76,914,265,716.86/376,231.47
  6. Step 6: Final answer
    x = 204,433.37

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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.