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Finding the Fourth Proportional to 356.63, 535.14 and 192.06

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Solution

The fourth proportional to 356.63, 535.14 and 192.06 is: 288.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    356.63 : 535.14 = 192.06 : x
  2. Step 2: Convert to fraction form
    356.63/535.14 = 192.06/x
  3. Step 3: Cross multiply
    356.63x = 535.14 × 192.06
  4. Step 4: Simplify right side
    356.63x = 102,778.99
  5. Step 5: Solve for x
    x = 102,778.99/356.63
  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.