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Finding the Fourth Proportional to 336.69, 507.51 and 308.97

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Solution

The fourth proportional to 336.69, 507.51 and 308.97 is: 465.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.69 : 507.51 = 308.97 : x
  2. Step 2: Convert to fraction form
    336.69/507.51 = 308.97/x
  3. Step 3: Cross multiply
    336.69x = 507.51 × 308.97
  4. Step 4: Simplify right side
    336.69x = 156,805.36
  5. Step 5: Solve for x
    x = 156,805.36/336.69
  6. Step 6: Final answer
    x = 465.73

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.