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Finding the Fourth Proportional to 300.95, 448.88 and 291.83

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Solution

The fourth proportional to 300.95, 448.88 and 291.83 is: 435.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.95 : 448.88 = 291.83 : x
  2. Step 2: Convert to fraction form
    300.95/448.88 = 291.83/x
  3. Step 3: Cross multiply
    300.95x = 448.88 × 291.83
  4. Step 4: Simplify right side
    300.95x = 130,995.19
  5. Step 5: Solve for x
    x = 130,995.19/300.95
  6. Step 6: Final answer
    x = 435.28

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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.