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Finding the Fourth Proportional to 289,273.88, 399,233.60 and 174,618.38

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Solution

The fourth proportional to 289,273.88, 399,233.60 and 174,618.38 is: 240,994.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,273.88 : 399,233.60 = 174,618.38 : x
  2. Step 2: Convert to fraction form
    289,273.88/399,233.60 = 174,618.38/x
  3. Step 3: Cross multiply
    289,273.88x = 399,233.60 × 174,618.38
  4. Step 4: Simplify right side
    289,273.88x = 69,713,524,473.57
  5. Step 5: Solve for x
    x = 69,713,524,473.57/289,273.88
  6. Step 6: Final answer
    x = 240,994.88

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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.