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Finding the Fourth Proportional to 330.86, 497.79 and 250.22

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Solution

The fourth proportional to 330.86, 497.79 and 250.22 is: 376.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    330.86 : 497.79 = 250.22 : x
  2. Step 2: Convert to fraction form
    330.86/497.79 = 250.22/x
  3. Step 3: Cross multiply
    330.86x = 497.79 × 250.22
  4. Step 4: Simplify right side
    330.86x = 124,557.01
  5. Step 5: Solve for x
    x = 124,557.01/330.86
  6. Step 6: Final answer
    x = 376.46

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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.