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Finding the Fourth Proportional to 479.95, 662.62 and 303.14

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Solution

The fourth proportional to 479.95, 662.62 and 303.14 is: 418.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.95 : 662.62 = 303.14 : x
  2. Step 2: Convert to fraction form
    479.95/662.62 = 303.14/x
  3. Step 3: Cross multiply
    479.95x = 662.62 × 303.14
  4. Step 4: Simplify right side
    479.95x = 200,866.63
  5. Step 5: Solve for x
    x = 200,866.63/479.95
  6. Step 6: Final answer
    x = 418.52

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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.