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Finding the Fourth Proportional to 353.98, 531.32 and 192.01

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Solution

The fourth proportional to 353.98, 531.32 and 192.01 is: 288.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    353.98 : 531.32 = 192.01 : x
  2. Step 2: Convert to fraction form
    353.98/531.32 = 192.01/x
  3. Step 3: Cross multiply
    353.98x = 531.32 × 192.01
  4. Step 4: Simplify right side
    353.98x = 102,018.75
  5. Step 5: Solve for x
    x = 102,018.75/353.98
  6. Step 6: Final answer
    x = 288.20

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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.