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Finding the Fourth Proportional to 356.40, 531.56 and 350.24

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Solution

The fourth proportional to 356.40, 531.56 and 350.24 is: 522.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.40 : 531.56 = 350.24 : x
  2. Step 2: Convert to fraction form
    356.40/531.56 = 350.24/x
  3. Step 3: Cross multiply
    356.40x = 531.56 × 350.24
  4. Step 4: Simplify right side
    356.40x = 186,174.78
  5. Step 5: Solve for x
    x = 186,174.78/356.40
  6. Step 6: Final answer
    x = 522.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.