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Finding the Fourth Proportional to 602.37, 831.17 and 353.49

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Solution

The fourth proportional to 602.37, 831.17 and 353.49 is: 487.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.37 : 831.17 = 353.49 : x
  2. Step 2: Convert to fraction form
    602.37/831.17 = 353.49/x
  3. Step 3: Cross multiply
    602.37x = 831.17 × 353.49
  4. Step 4: Simplify right side
    602.37x = 293,808.52
  5. Step 5: Solve for x
    x = 293,808.52/602.37
  6. Step 6: Final answer
    x = 487.75

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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.