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Finding the Fourth Proportional to 436.84, 602.78 and 250.31

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Solution

The fourth proportional to 436.84, 602.78 and 250.31 is: 345.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.84 : 602.78 = 250.31 : x
  2. Step 2: Convert to fraction form
    436.84/602.78 = 250.31/x
  3. Step 3: Cross multiply
    436.84x = 602.78 × 250.31
  4. Step 4: Simplify right side
    436.84x = 150,878.73
  5. Step 5: Solve for x
    x = 150,878.73/436.84
  6. Step 6: Final answer
    x = 345.38

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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.