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Finding the Fourth Proportional to 601.13, 829.56 and 339.21

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Solution

The fourth proportional to 601.13, 829.56 and 339.21 is: 468.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.13 : 829.56 = 339.21 : x
  2. Step 2: Convert to fraction form
    601.13/829.56 = 339.21/x
  3. Step 3: Cross multiply
    601.13x = 829.56 × 339.21
  4. Step 4: Simplify right side
    601.13x = 281,395.05
  5. Step 5: Solve for x
    x = 281,395.05/601.13
  6. Step 6: Final answer
    x = 468.11

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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.