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Finding the Fourth Proportional to 601.15, 829.59 and 339.17

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Solution

The fourth proportional to 601.15, 829.59 and 339.17 is: 468.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.15 : 829.59 = 339.17 : x
  2. Step 2: Convert to fraction form
    601.15/829.59 = 339.17/x
  3. Step 3: Cross multiply
    601.15x = 829.59 × 339.17
  4. Step 4: Simplify right side
    601.15x = 281,366.62
  5. Step 5: Solve for x
    x = 281,366.62/601.15
  6. Step 6: Final answer
    x = 468.05

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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.