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Finding the Fourth Proportional to 394,035.84, 543,948.48 and 250,992

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Solution

The fourth proportional to 394,035.84, 543,948.48 and 250,992 is: 346,482.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,035.84 : 543,948.48 = 250,992 : x
  2. Step 2: Convert to fraction form
    394,035.84/543,948.48 = 250,992/x
  3. Step 3: Cross multiply
    394,035.84x = 543,948.48 × 250,992
  4. Step 4: Simplify right side
    394,035.84x = 136,526,716,892.16
  5. Step 5: Solve for x
    x = 136,526,716,892.16/394,035.84
  6. Step 6: Final answer
    x = 346,482.99

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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.