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Finding the Fourth Proportional to 436.97, 603 and 250.45

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Solution

The fourth proportional to 436.97, 603 and 250.45 is: 345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.97 : 603 = 250.45 : x
  2. Step 2: Convert to fraction form
    436.97/603 = 250.45/x
  3. Step 3: Cross multiply
    436.97x = 603 × 250.45
  4. Step 4: Simplify right side
    436.97x = 151,019.84
  5. Step 5: Solve for x
    x = 151,019.84/436.97
  6. Step 6: Final answer
    x = 345.60

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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.