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Finding the Fourth Proportional to 501.66, 687.29 and 482.22

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Solution

The fourth proportional to 501.66, 687.29 and 482.22 is: 660.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.66 : 687.29 = 482.22 : x
  2. Step 2: Convert to fraction form
    501.66/687.29 = 482.22/x
  3. Step 3: Cross multiply
    501.66x = 687.29 × 482.22
  4. Step 4: Simplify right side
    501.66x = 331,422.57
  5. Step 5: Solve for x
    x = 331,422.57/501.66
  6. Step 6: Final answer
    x = 660.65

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.