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Finding the Fourth Proportional to 316.45, 436.52 and 192.07

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Solution

The fourth proportional to 316.45, 436.52 and 192.07 is: 264.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.45 : 436.52 = 192.07 : x
  2. Step 2: Convert to fraction form
    316.45/436.52 = 192.07/x
  3. Step 3: Cross multiply
    316.45x = 436.52 × 192.07
  4. Step 4: Simplify right side
    316.45x = 83,839.25
  5. Step 5: Solve for x
    x = 83,839.25/316.45
  6. Step 6: Final answer
    x = 264.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.