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Finding the Fourth Proportional to 492.75, 680.00 and 337.77

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Solution

The fourth proportional to 492.75, 680.00 and 337.77 is: 466.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    492.75 : 680.00 = 337.77 : x
  2. Step 2: Convert to fraction form
    492.75/680.00 = 337.77/x
  3. Step 3: Cross multiply
    492.75x = 680.00 × 337.77
  4. Step 4: Simplify right side
    492.75x = 229,681.91
  5. Step 5: Solve for x
    x = 229,681.91/492.75
  6. Step 6: Final answer
    x = 466.12

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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.