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Finding the Fourth Proportional to 424.94, 636.30 and 334.10

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Solution

The fourth proportional to 424.94, 636.30 and 334.10 is: 500.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    424.94 : 636.30 = 334.10 : x
  2. Step 2: Convert to fraction form
    424.94/636.30 = 334.10/x
  3. Step 3: Cross multiply
    424.94x = 636.30 × 334.10
  4. Step 4: Simplify right side
    424.94x = 212,587.83
  5. Step 5: Solve for x
    x = 212,587.83/424.94
  6. Step 6: Final answer
    x = 500.28

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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.