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Finding the Fourth Proportional to 356.16, 531.26 and 350.76

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Solution

The fourth proportional to 356.16, 531.26 and 350.76 is: 523.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.16 : 531.26 = 350.76 : x
  2. Step 2: Convert to fraction form
    356.16/531.26 = 350.76/x
  3. Step 3: Cross multiply
    356.16x = 531.26 × 350.76
  4. Step 4: Simplify right side
    356.16x = 186,344.76
  5. Step 5: Solve for x
    x = 186,344.76/356.16
  6. Step 6: Final answer
    x = 523.21

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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.