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Finding the Fourth Proportional to 336.83, 502.45 and 302.21

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Solution

The fourth proportional to 336.83, 502.45 and 302.21 is: 450.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.83 : 502.45 = 302.21 : x
  2. Step 2: Convert to fraction form
    336.83/502.45 = 302.21/x
  3. Step 3: Cross multiply
    336.83x = 502.45 × 302.21
  4. Step 4: Simplify right side
    336.83x = 151,845.41
  5. Step 5: Solve for x
    x = 151,845.41/336.83
  6. Step 6: Final answer
    x = 450.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.