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Finding the Fourth Proportional to 476.37, 713.18 and 270.57

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Solution

The fourth proportional to 476.37, 713.18 and 270.57 is: 405.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.37 : 713.18 = 270.57 : x
  2. Step 2: Convert to fraction form
    476.37/713.18 = 270.57/x
  3. Step 3: Cross multiply
    476.37x = 713.18 × 270.57
  4. Step 4: Simplify right side
    476.37x = 192,963.76
  5. Step 5: Solve for x
    x = 192,963.76/476.37
  6. Step 6: Final answer
    x = 405.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.