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Finding the Fourth Proportional to 470.57, 704.41 and 348.53

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Solution

The fourth proportional to 470.57, 704.41 and 348.53 is: 521.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    470.57 : 704.41 = 348.53 : x
  2. Step 2: Convert to fraction form
    470.57/704.41 = 348.53/x
  3. Step 3: Cross multiply
    470.57x = 704.41 × 348.53
  4. Step 4: Simplify right side
    470.57x = 245,503.62
  5. Step 5: Solve for x
    x = 245,503.62/470.57
  6. Step 6: Final answer
    x = 521.72

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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.