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Finding the Fourth Proportional to 347.03, 478.99 and 234.94

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Solution

The fourth proportional to 347.03, 478.99 and 234.94 is: 324.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.03 : 478.99 = 234.94 : x
  2. Step 2: Convert to fraction form
    347.03/478.99 = 234.94/x
  3. Step 3: Cross multiply
    347.03x = 478.99 × 234.94
  4. Step 4: Simplify right side
    347.03x = 112,533.91
  5. Step 5: Solve for x
    x = 112,533.91/347.03
  6. Step 6: Final answer
    x = 324.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.