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Finding the Fourth Proportional to 412.37, 568.95 and 381.29

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Solution

The fourth proportional to 412.37, 568.95 and 381.29 is: 526.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    412.37 : 568.95 = 381.29 : x
  2. Step 2: Convert to fraction form
    412.37/568.95 = 381.29/x
  3. Step 3: Cross multiply
    412.37x = 568.95 × 381.29
  4. Step 4: Simplify right side
    412.37x = 216,934.95
  5. Step 5: Solve for x
    x = 216,934.95/412.37
  6. Step 6: Final answer
    x = 526.07

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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.