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Finding the Fourth Proportional to 459.11, 633.69 and 284.35

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Solution

The fourth proportional to 459.11, 633.69 and 284.35 is: 392.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    459.11 : 633.69 = 284.35 : x
  2. Step 2: Convert to fraction form
    459.11/633.69 = 284.35/x
  3. Step 3: Cross multiply
    459.11x = 633.69 × 284.35
  4. Step 4: Simplify right side
    459.11x = 180,189.75
  5. Step 5: Solve for x
    x = 180,189.75/459.11
  6. Step 6: Final answer
    x = 392.48

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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.