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Finding the Fourth Proportional to 477.70, 716.62 and 169.53

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Solution

The fourth proportional to 477.70, 716.62 and 169.53 is: 254.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.70 : 716.62 = 169.53 : x
  2. Step 2: Convert to fraction form
    477.70/716.62 = 169.53/x
  3. Step 3: Cross multiply
    477.70x = 716.62 × 169.53
  4. Step 4: Simplify right side
    477.70x = 121,486.86
  5. Step 5: Solve for x
    x = 121,486.86/477.70
  6. Step 6: Final answer
    x = 254.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.