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Finding the Fourth Proportional to 410.80, 567.02 and 253.56

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Solution

The fourth proportional to 410.80, 567.02 and 253.56 is: 349.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    410.80 : 567.02 = 253.56 : x
  2. Step 2: Convert to fraction form
    410.80/567.02 = 253.56/x
  3. Step 3: Cross multiply
    410.80x = 567.02 × 253.56
  4. Step 4: Simplify right side
    410.80x = 143,773.59
  5. Step 5: Solve for x
    x = 143,773.59/410.80
  6. Step 6: Final answer
    x = 349.98

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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.