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Finding the Fourth Proportional to 354.26, 530.98 and 200.30

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Solution

The fourth proportional to 354.26, 530.98 and 200.30 is: 300.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.26 : 530.98 = 200.30 : x
  2. Step 2: Convert to fraction form
    354.26/530.98 = 200.30/x
  3. Step 3: Cross multiply
    354.26x = 530.98 × 200.30
  4. Step 4: Simplify right side
    354.26x = 106,352.14
  5. Step 5: Solve for x
    x = 106,352.14/354.26
  6. Step 6: Final answer
    x = 300.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.