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Finding the Fourth Proportional to 482.52, 723.78 and 117.30

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Solution

The fourth proportional to 482.52, 723.78 and 117.30 is: 175.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.52 : 723.78 = 117.30 : x
  2. Step 2: Convert to fraction form
    482.52/723.78 = 117.30/x
  3. Step 3: Cross multiply
    482.52x = 723.78 × 117.30
  4. Step 4: Simplify right side
    482.52x = 84,899.39
  5. Step 5: Solve for x
    x = 84,899.39/482.52
  6. Step 6: Final answer
    x = 175.95

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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.