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Finding the Fourth Proportional to 300.91, 448.83 and 291.80

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Solution

The fourth proportional to 300.91, 448.83 and 291.80 is: 435.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.91 : 448.83 = 291.80 : x
  2. Step 2: Convert to fraction form
    300.91/448.83 = 291.80/x
  3. Step 3: Cross multiply
    300.91x = 448.83 × 291.80
  4. Step 4: Simplify right side
    300.91x = 130,968.59
  5. Step 5: Solve for x
    x = 130,968.59/300.91
  6. Step 6: Final answer
    x = 435.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.