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Finding the Fourth Proportional to 394.76, 544.62 and 270.62

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Solution

The fourth proportional to 394.76, 544.62 and 270.62 is: 373.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    394.76 : 544.62 = 270.62 : x
  2. Step 2: Convert to fraction form
    394.76/544.62 = 270.62/x
  3. Step 3: Cross multiply
    394.76x = 544.62 × 270.62
  4. Step 4: Simplify right side
    394.76x = 147,385.06
  5. Step 5: Solve for x
    x = 147,385.06/394.76
  6. Step 6: Final answer
    x = 373.35

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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.