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Finding the Fourth Proportional to 316.01, 436.01 and 189.92

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Solution

The fourth proportional to 316.01, 436.01 and 189.92 is: 262.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.01 : 436.01 = 189.92 : x
  2. Step 2: Convert to fraction form
    316.01/436.01 = 189.92/x
  3. Step 3: Cross multiply
    316.01x = 436.01 × 189.92
  4. Step 4: Simplify right side
    316.01x = 82,807.16
  5. Step 5: Solve for x
    x = 82,807.16/316.01
  6. Step 6: Final answer
    x = 262.04

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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.