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Finding the Fourth Proportional to 316.46, 436.35 and 250.94

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Solution

The fourth proportional to 316.46, 436.35 and 250.94 is: 346.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.46 : 436.35 = 250.94 : x
  2. Step 2: Convert to fraction form
    316.46/436.35 = 250.94/x
  3. Step 3: Cross multiply
    316.46x = 436.35 × 250.94
  4. Step 4: Simplify right side
    316.46x = 109,497.67
  5. Step 5: Solve for x
    x = 109,497.67/316.46
  6. Step 6: Final answer
    x = 346.01

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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.