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Finding the Fourth Proportional to 410.92, 567.12 and 355.84

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Solution

The fourth proportional to 410.92, 567.12 and 355.84 is: 491.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.92 : 567.12 = 355.84 : x
  2. Step 2: Convert to fraction form
    410.92/567.12 = 355.84/x
  3. Step 3: Cross multiply
    410.92x = 567.12 × 355.84
  4. Step 4: Simplify right side
    410.92x = 201,803.98
  5. Step 5: Solve for x
    x = 201,803.98/410.92
  6. Step 6: Final answer
    x = 491.10

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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.