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Finding the Fourth Proportional to 296.83, 409.54 and 231.22

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Solution

The fourth proportional to 296.83, 409.54 and 231.22 is: 319.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.83 : 409.54 = 231.22 : x
  2. Step 2: Convert to fraction form
    296.83/409.54 = 231.22/x
  3. Step 3: Cross multiply
    296.83x = 409.54 × 231.22
  4. Step 4: Simplify right side
    296.83x = 94,690.64
  5. Step 5: Solve for x
    x = 94,690.64/296.83
  6. Step 6: Final answer
    x = 319.01

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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.