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Finding the Fourth Proportional to 334.98, 462.10 and 210.78

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Solution

The fourth proportional to 334.98, 462.10 and 210.78 is: 290.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.98 : 462.10 = 210.78 : x
  2. Step 2: Convert to fraction form
    334.98/462.10 = 210.78/x
  3. Step 3: Cross multiply
    334.98x = 462.10 × 210.78
  4. Step 4: Simplify right side
    334.98x = 97,401.44
  5. Step 5: Solve for x
    x = 97,401.44/334.98
  6. Step 6: Final answer
    x = 290.77

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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.