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Finding the Fourth Proportional to 356.42, 533.82 and 336.18

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Solution

The fourth proportional to 356.42, 533.82 and 336.18 is: 503.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.42 : 533.82 = 336.18 : x
  2. Step 2: Convert to fraction form
    356.42/533.82 = 336.18/x
  3. Step 3: Cross multiply
    356.42x = 533.82 × 336.18
  4. Step 4: Simplify right side
    356.42x = 179,459.61
  5. Step 5: Solve for x
    x = 179,459.61/356.42
  6. Step 6: Final answer
    x = 503.51

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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.