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Finding the Fourth Proportional to 251,086.89, 346,560.17 and 143,719.17

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Solution

The fourth proportional to 251,086.89, 346,560.17 and 143,719.17 is: 198,366.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,086.89 : 346,560.17 = 143,719.17 : x
  2. Step 2: Convert to fraction form
    251,086.89/346,560.17 = 143,719.17/x
  3. Step 3: Cross multiply
    251,086.89x = 346,560.17 × 143,719.17
  4. Step 4: Simplify right side
    251,086.89x = 49,807,339,268.86
  5. Step 5: Solve for x
    x = 49,807,339,268.86/251,086.89
  6. Step 6: Final answer
    x = 198,366.94

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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.