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Finding the Fourth Proportional to 458.82, 632.98 and 284.06

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Solution

The fourth proportional to 458.82, 632.98 and 284.06 is: 391.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    458.82 : 632.98 = 284.06 : x
  2. Step 2: Convert to fraction form
    458.82/632.98 = 284.06/x
  3. Step 3: Cross multiply
    458.82x = 632.98 × 284.06
  4. Step 4: Simplify right side
    458.82x = 179,806.24
  5. Step 5: Solve for x
    x = 179,806.24/458.82
  6. Step 6: Final answer
    x = 391.89

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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.