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Finding the Fourth Proportional to 459.23, 634.00 and 282.26

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Solution

The fourth proportional to 459.23, 634.00 and 282.26 is: 389.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    459.23 : 634.00 = 282.26 : x
  2. Step 2: Convert to fraction form
    459.23/634.00 = 282.26/x
  3. Step 3: Cross multiply
    459.23x = 634.00 × 282.26
  4. Step 4: Simplify right side
    459.23x = 178,953.26
  5. Step 5: Solve for x
    x = 178,953.26/459.23
  6. Step 6: Final answer
    x = 389.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.