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Finding the Fourth Proportional to 356.95, 535.53 and 308.56

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Solution

The fourth proportional to 356.95, 535.53 and 308.56 is: 462.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.95 : 535.53 = 308.56 : x
  2. Step 2: Convert to fraction form
    356.95/535.53 = 308.56/x
  3. Step 3: Cross multiply
    356.95x = 535.53 × 308.56
  4. Step 4: Simplify right side
    356.95x = 165,243.14
  5. Step 5: Solve for x
    x = 165,243.14/356.95
  6. Step 6: Final answer
    x = 462.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.