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Finding the Fourth Proportional to 347.95, 522.15 and 174.79

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Solution

The fourth proportional to 347.95, 522.15 and 174.79 is: 262.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.95 : 522.15 = 174.79 : x
  2. Step 2: Convert to fraction form
    347.95/522.15 = 174.79/x
  3. Step 3: Cross multiply
    347.95x = 522.15 × 174.79
  4. Step 4: Simplify right side
    347.95x = 91,266.60
  5. Step 5: Solve for x
    x = 91,266.60/347.95
  6. Step 6: Final answer
    x = 262.30

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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.