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Finding the Fourth Proportional to 477.24, 715.98 and 169.14

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Solution

The fourth proportional to 477.24, 715.98 and 169.14 is: 253.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.24 : 715.98 = 169.14 : x
  2. Step 2: Convert to fraction form
    477.24/715.98 = 169.14/x
  3. Step 3: Cross multiply
    477.24x = 715.98 × 169.14
  4. Step 4: Simplify right side
    477.24x = 121,100.86
  5. Step 5: Solve for x
    x = 121,100.86/477.24
  6. Step 6: Final answer
    x = 253.75

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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.