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Finding the Fourth Proportional to 502.66, 688.66 and 483.22

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Solution

The fourth proportional to 502.66, 688.66 and 483.22 is: 662.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    502.66 : 688.66 = 483.22 : x
  2. Step 2: Convert to fraction form
    502.66/688.66 = 483.22/x
  3. Step 3: Cross multiply
    502.66x = 688.66 × 483.22
  4. Step 4: Simplify right side
    502.66x = 332,774.29
  5. Step 5: Solve for x
    x = 332,774.29/502.66
  6. Step 6: Final answer
    x = 662.03

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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.