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Finding the Fourth Proportional to 336.28, 501.29 and 318.04

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Solution

The fourth proportional to 336.28, 501.29 and 318.04 is: 474.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.28 : 501.29 = 318.04 : x
  2. Step 2: Convert to fraction form
    336.28/501.29 = 318.04/x
  3. Step 3: Cross multiply
    336.28x = 501.29 × 318.04
  4. Step 4: Simplify right side
    336.28x = 159,430.27
  5. Step 5: Solve for x
    x = 159,430.27/336.28
  6. Step 6: Final answer
    x = 474.10

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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.