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Finding the Fourth Proportional to 336.15, 502.43 and 263.25

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Solution

The fourth proportional to 336.15, 502.43 and 263.25 is: 393.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.15 : 502.43 = 263.25 : x
  2. Step 2: Convert to fraction form
    336.15/502.43 = 263.25/x
  3. Step 3: Cross multiply
    336.15x = 502.43 × 263.25
  4. Step 4: Simplify right side
    336.15x = 132,263.38
  5. Step 5: Solve for x
    x = 132,263.38/336.15
  6. Step 6: Final answer
    x = 393.47

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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.