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Finding the Fourth Proportional to 602.26, 831.29 and 353.59

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Solution

The fourth proportional to 602.26, 831.29 and 353.59 is: 488.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.26 : 831.29 = 353.59 : x
  2. Step 2: Convert to fraction form
    602.26/831.29 = 353.59/x
  3. Step 3: Cross multiply
    602.26x = 831.29 × 353.59
  4. Step 4: Simplify right side
    602.26x = 293,936.72
  5. Step 5: Solve for x
    x = 293,936.72/602.26
  6. Step 6: Final answer
    x = 488.06

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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.