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Finding the Fourth Proportional to 315.30, 435.18 and 184.34

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Solution

The fourth proportional to 315.30, 435.18 and 184.34 is: 254.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    315.30 : 435.18 = 184.34 : x
  2. Step 2: Convert to fraction form
    315.30/435.18 = 184.34/x
  3. Step 3: Cross multiply
    315.30x = 435.18 × 184.34
  4. Step 4: Simplify right side
    315.30x = 80,222.86
  5. Step 5: Solve for x
    x = 80,222.86/315.30
  6. Step 6: Final answer
    x = 254.43

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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.