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Finding the Fourth Proportional to 323.81, 484.80 and 291.01

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Solution

The fourth proportional to 323.81, 484.80 and 291.01 is: 435.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.81 : 484.80 = 291.01 : x
  2. Step 2: Convert to fraction form
    323.81/484.80 = 291.01/x
  3. Step 3: Cross multiply
    323.81x = 484.80 × 291.01
  4. Step 4: Simplify right side
    323.81x = 141,079.22
  5. Step 5: Solve for x
    x = 141,079.22/323.81
  6. Step 6: Final answer
    x = 435.69

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Why These Related Problems?

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