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Finding the Fourth Proportional to 336.11, 507.09 and 335.21

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Solution

The fourth proportional to 336.11, 507.09 and 335.21 is: 505.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.11 : 507.09 = 335.21 : x
  2. Step 2: Convert to fraction form
    336.11/507.09 = 335.21/x
  3. Step 3: Cross multiply
    336.11x = 507.09 × 335.21
  4. Step 4: Simplify right side
    336.11x = 169,980.36
  5. Step 5: Solve for x
    x = 169,980.36/336.11
  6. Step 6: Final answer
    x = 505.74

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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.