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Finding the Fourth Proportional to 466.76, 644.24 and 270.34

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Solution

The fourth proportional to 466.76, 644.24 and 270.34 is: 373.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.76 : 644.24 = 270.34 : x
  2. Step 2: Convert to fraction form
    466.76/644.24 = 270.34/x
  3. Step 3: Cross multiply
    466.76x = 644.24 × 270.34
  4. Step 4: Simplify right side
    466.76x = 174,163.84
  5. Step 5: Solve for x
    x = 174,163.84/466.76
  6. Step 6: Final answer
    x = 373.13

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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.