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Finding the Fourth Proportional to 458.98, 633.17 and 303.86

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Solution

The fourth proportional to 458.98, 633.17 and 303.86 is: 419.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.98 : 633.17 = 303.86 : x
  2. Step 2: Convert to fraction form
    458.98/633.17 = 303.86/x
  3. Step 3: Cross multiply
    458.98x = 633.17 × 303.86
  4. Step 4: Simplify right side
    458.98x = 192,395.04
  5. Step 5: Solve for x
    x = 192,395.04/458.98
  6. Step 6: Final answer
    x = 419.18

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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.