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Finding the Fourth Proportional to 347.22, 519.89 and 269.51

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Solution

The fourth proportional to 347.22, 519.89 and 269.51 is: 403.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.22 : 519.89 = 269.51 : x
  2. Step 2: Convert to fraction form
    347.22/519.89 = 269.51/x
  3. Step 3: Cross multiply
    347.22x = 519.89 × 269.51
  4. Step 4: Simplify right side
    347.22x = 140,111.61
  5. Step 5: Solve for x
    x = 140,111.61/347.22
  6. Step 6: Final answer
    x = 403.52

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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.