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Finding the Fourth Proportional to 459.83, 634.66 and 282.94

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Solution

The fourth proportional to 459.83, 634.66 and 282.94 is: 390.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    459.83 : 634.66 = 282.94 : x
  2. Step 2: Convert to fraction form
    459.83/634.66 = 282.94/x
  3. Step 3: Cross multiply
    459.83x = 634.66 × 282.94
  4. Step 4: Simplify right side
    459.83x = 179,572.73
  5. Step 5: Solve for x
    x = 179,572.73/459.83
  6. Step 6: Final answer
    x = 390.52

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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.