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Finding the Fourth Proportional to 336.44, 502.48 and 317.72

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Solution

The fourth proportional to 336.44, 502.48 and 317.72 is: 474.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.44 : 502.48 = 317.72 : x
  2. Step 2: Convert to fraction form
    336.44/502.48 = 317.72/x
  3. Step 3: Cross multiply
    336.44x = 502.48 × 317.72
  4. Step 4: Simplify right side
    336.44x = 159,647.95
  5. Step 5: Solve for x
    x = 159,647.95/336.44
  6. Step 6: Final answer
    x = 474.52

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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.