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Finding the Fourth Proportional to 602.91, 831.99 and 340.94

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Solution

The fourth proportional to 602.91, 831.99 and 340.94 is: 470.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.91 : 831.99 = 340.94 : x
  2. Step 2: Convert to fraction form
    602.91/831.99 = 340.94/x
  3. Step 3: Cross multiply
    602.91x = 831.99 × 340.94
  4. Step 4: Simplify right side
    602.91x = 283,658.67
  5. Step 5: Solve for x
    x = 283,658.67/602.91
  6. Step 6: Final answer
    x = 470.48

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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.