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Finding the Fourth Proportional to 348.75, 523.53 and 291.66

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Solution

The fourth proportional to 348.75, 523.53 and 291.66 is: 437.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.75 : 523.53 = 291.66 : x
  2. Step 2: Convert to fraction form
    348.75/523.53 = 291.66/x
  3. Step 3: Cross multiply
    348.75x = 523.53 × 291.66
  4. Step 4: Simplify right side
    348.75x = 152,692.76
  5. Step 5: Solve for x
    x = 152,692.76/348.75
  6. Step 6: Final answer
    x = 437.83

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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.