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Finding the Fourth Proportional to 353.33, 530.39 and 207.26

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Solution

The fourth proportional to 353.33, 530.39 and 207.26 is: 311.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    353.33 : 530.39 = 207.26 : x
  2. Step 2: Convert to fraction form
    353.33/530.39 = 207.26/x
  3. Step 3: Cross multiply
    353.33x = 530.39 × 207.26
  4. Step 4: Simplify right side
    353.33x = 109,926.50
  5. Step 5: Solve for x
    x = 109,926.50/353.33
  6. Step 6: Final answer
    x = 311.11

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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.