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Finding the Fourth Proportional to 347.93, 482.64 and 329.48

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Solution

The fourth proportional to 347.93, 482.64 and 329.48 is: 457.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.93 : 482.64 = 329.48 : x
  2. Step 2: Convert to fraction form
    347.93/482.64 = 329.48/x
  3. Step 3: Cross multiply
    347.93x = 482.64 × 329.48
  4. Step 4: Simplify right side
    347.93x = 159,020.23
  5. Step 5: Solve for x
    x = 159,020.23/347.93
  6. Step 6: Final answer
    x = 457.05

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.