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Finding the Fourth Proportional to 567.26, 783.02 and 357.79

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Solution

The fourth proportional to 567.26, 783.02 and 357.79 is: 493.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.26 : 783.02 = 357.79 : x
  2. Step 2: Convert to fraction form
    567.26/783.02 = 357.79/x
  3. Step 3: Cross multiply
    567.26x = 783.02 × 357.79
  4. Step 4: Simplify right side
    567.26x = 280,156.73
  5. Step 5: Solve for x
    x = 280,156.73/567.26
  6. Step 6: Final answer
    x = 493.88

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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.