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Finding the Fourth Proportional to 336.69, 501.72 and 325.68

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Solution

The fourth proportional to 336.69, 501.72 and 325.68 is: 485.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.69 : 501.72 = 325.68 : x
  2. Step 2: Convert to fraction form
    336.69/501.72 = 325.68/x
  3. Step 3: Cross multiply
    336.69x = 501.72 × 325.68
  4. Step 4: Simplify right side
    336.69x = 163,399.81
  5. Step 5: Solve for x
    x = 163,399.81/336.69
  6. Step 6: Final answer
    x = 485.32

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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.