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Finding the Fourth Proportional to 602.29, 831.09 and 340.24

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Solution

The fourth proportional to 602.29, 831.09 and 340.24 is: 469.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.29 : 831.09 = 340.24 : x
  2. Step 2: Convert to fraction form
    602.29/831.09 = 340.24/x
  3. Step 3: Cross multiply
    602.29x = 831.09 × 340.24
  4. Step 4: Simplify right side
    602.29x = 282,770.06
  5. Step 5: Solve for x
    x = 282,770.06/602.29
  6. Step 6: Final answer
    x = 469.49

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1.5x scale

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.