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Finding the Fourth Proportional to 297.16, 410.30 and 235.31

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Solution

The fourth proportional to 297.16, 410.30 and 235.31 is: 324.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.16 : 410.30 = 235.31 : x
  2. Step 2: Convert to fraction form
    297.16/410.30 = 235.31/x
  3. Step 3: Cross multiply
    297.16x = 410.30 × 235.31
  4. Step 4: Simplify right side
    297.16x = 96,547.69
  5. Step 5: Solve for x
    x = 96,547.69/297.16
  6. Step 6: Final answer
    x = 324.90

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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.