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Finding the Fourth Proportional to 454.84, 682.27 and 146.63

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Solution

The fourth proportional to 454.84, 682.27 and 146.63 is: 219.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.84 : 682.27 = 146.63 : x
  2. Step 2: Convert to fraction form
    454.84/682.27 = 146.63/x
  3. Step 3: Cross multiply
    454.84x = 682.27 × 146.63
  4. Step 4: Simplify right side
    454.84x = 100,038.75
  5. Step 5: Solve for x
    x = 100,038.75/454.84
  6. Step 6: Final answer
    x = 219.94

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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.