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Finding the Fourth Proportional to 412.15, 568.64 and 235.10

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Solution

The fourth proportional to 412.15, 568.64 and 235.10 is: 324.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    412.15 : 568.64 = 235.10 : x
  2. Step 2: Convert to fraction form
    412.15/568.64 = 235.10/x
  3. Step 3: Cross multiply
    412.15x = 568.64 × 235.10
  4. Step 4: Simplify right side
    412.15x = 133,686.09
  5. Step 5: Solve for x
    x = 133,686.09/412.15
  6. Step 6: Final answer
    x = 324.37

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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.