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Finding the Fourth Proportional to 336.12, 501.14 and 315.48

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Solution

The fourth proportional to 336.12, 501.14 and 315.48 is: 470.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.12 : 501.14 = 315.48 : x
  2. Step 2: Convert to fraction form
    336.12/501.14 = 315.48/x
  3. Step 3: Cross multiply
    336.12x = 501.14 × 315.48
  4. Step 4: Simplify right side
    336.12x = 158,099.65
  5. Step 5: Solve for x
    x = 158,099.65/336.12
  6. Step 6: Final answer
    x = 470.37

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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.