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Finding the Fourth Proportional to 564.86, 847.70 and 348.59

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Solution

The fourth proportional to 564.86, 847.70 and 348.59 is: 523.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.86 : 847.70 = 348.59 : x
  2. Step 2: Convert to fraction form
    564.86/847.70 = 348.59/x
  3. Step 3: Cross multiply
    564.86x = 847.70 × 348.59
  4. Step 4: Simplify right side
    564.86x = 295,493.76
  5. Step 5: Solve for x
    x = 295,493.76/564.86
  6. Step 6: Final answer
    x = 523.13

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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.