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Finding the Fourth Proportional to 486, 727.99 and 302.94

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Solution

The fourth proportional to 486, 727.99 and 302.94 is: 453.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    486 : 727.99 = 302.94 : x
  2. Step 2: Convert to fraction form
    486/727.99 = 302.94/x
  3. Step 3: Cross multiply
    486x = 727.99 × 302.94
  4. Step 4: Simplify right side
    486x = 220,536.53
  5. Step 5: Solve for x
    x = 220,536.53/486
  6. Step 6: Final answer
    x = 453.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.