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Finding the Fourth Proportional to 415.84, 574 and 250.16

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Solution

The fourth proportional to 415.84, 574 and 250.16 is: 345.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    415.84 : 574 = 250.16 : x
  2. Step 2: Convert to fraction form
    415.84/574 = 250.16/x
  3. Step 3: Cross multiply
    415.84x = 574 × 250.16
  4. Step 4: Simplify right side
    415.84x = 143,591.84
  5. Step 5: Solve for x
    x = 143,591.84/415.84
  6. Step 6: Final answer
    x = 345.31

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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.