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Finding the Fourth Proportional to 578.76, 868.11 and 232.00

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Solution

The fourth proportional to 578.76, 868.11 and 232.00 is: 347.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    578.76 : 868.11 = 232.00 : x
  2. Step 2: Convert to fraction form
    578.76/868.11 = 232.00/x
  3. Step 3: Cross multiply
    578.76x = 868.11 × 232.00
  4. Step 4: Simplify right side
    578.76x = 201,402.61
  5. Step 5: Solve for x
    x = 201,402.61/578.76
  6. Step 6: Final answer
    x = 347.99

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Double scale
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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.