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Finding the Fourth Proportional to 602.87, 831.92 and 340.83

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Solution

The fourth proportional to 602.87, 831.92 and 340.83 is: 470.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.87 : 831.92 = 340.83 : x
  2. Step 2: Convert to fraction form
    602.87/831.92 = 340.83/x
  3. Step 3: Cross multiply
    602.87x = 831.92 × 340.83
  4. Step 4: Simplify right side
    602.87x = 283,541.59
  5. Step 5: Solve for x
    x = 283,541.59/602.87
  6. Step 6: Final answer
    x = 470.32

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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.