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Finding the Fourth Proportional to 355.29, 530.52 and 335.04

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Solution

The fourth proportional to 355.29, 530.52 and 335.04 is: 500.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.29 : 530.52 = 335.04 : x
  2. Step 2: Convert to fraction form
    355.29/530.52 = 335.04/x
  3. Step 3: Cross multiply
    355.29x = 530.52 × 335.04
  4. Step 4: Simplify right side
    355.29x = 177,745.42
  5. Step 5: Solve for x
    x = 177,745.42/355.29
  6. Step 6: Final answer
    x = 500.28

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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.