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Finding the Fourth Proportional to 356.29, 533.41 and 291.37

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Solution

The fourth proportional to 356.29, 533.41 and 291.37 is: 436.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.29 : 533.41 = 291.37 : x
  2. Step 2: Convert to fraction form
    356.29/533.41 = 291.37/x
  3. Step 3: Cross multiply
    356.29x = 533.41 × 291.37
  4. Step 4: Simplify right side
    356.29x = 155,419.67
  5. Step 5: Solve for x
    x = 155,419.67/356.29
  6. Step 6: Final answer
    x = 436.22

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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.