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Finding the Fourth Proportional to 606.50, 836.98 and 330.50

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Solution

The fourth proportional to 606.50, 836.98 and 330.50 is: 456.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.50 : 836.98 = 330.50 : x
  2. Step 2: Convert to fraction form
    606.50/836.98 = 330.50/x
  3. Step 3: Cross multiply
    606.50x = 836.98 × 330.50
  4. Step 4: Simplify right side
    606.50x = 276,621.89
  5. Step 5: Solve for x
    x = 276,621.89/606.50
  6. Step 6: Final answer
    x = 456.10

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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.