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Finding the Fourth Proportional to 347.39, 521.07 and 201.18

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Solution

The fourth proportional to 347.39, 521.07 and 201.18 is: 301.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.39 : 521.07 = 201.18 : x
  2. Step 2: Convert to fraction form
    347.39/521.07 = 201.18/x
  3. Step 3: Cross multiply
    347.39x = 521.07 × 201.18
  4. Step 4: Simplify right side
    347.39x = 104,830.06
  5. Step 5: Solve for x
    x = 104,830.06/347.39
  6. Step 6: Final answer
    x = 301.77

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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.