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Finding the Fourth Proportional to 347.18, 519.23 and 308.93

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Solution

The fourth proportional to 347.18, 519.23 and 308.93 is: 462.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.18 : 519.23 = 308.93 : x
  2. Step 2: Convert to fraction form
    347.18/519.23 = 308.93/x
  3. Step 3: Cross multiply
    347.18x = 519.23 × 308.93
  4. Step 4: Simplify right side
    347.18x = 160,405.72
  5. Step 5: Solve for x
    x = 160,405.72/347.18
  6. Step 6: Final answer
    x = 462.02

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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.