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Finding the Fourth Proportional to 315.87, 436.01 and 184.88

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Solution

The fourth proportional to 315.87, 436.01 and 184.88 is: 255.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    315.87 : 436.01 = 184.88 : x
  2. Step 2: Convert to fraction form
    315.87/436.01 = 184.88/x
  3. Step 3: Cross multiply
    315.87x = 436.01 × 184.88
  4. Step 4: Simplify right side
    315.87x = 80,606.42
  5. Step 5: Solve for x
    x = 80,606.42/315.87
  6. Step 6: Final answer
    x = 255.19

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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.