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Finding the Fourth Proportional to 564.50, 848.64 and 443

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Solution

The fourth proportional to 564.50, 848.64 and 443 is: 665.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    564.50 : 848.64 = 443 : x
  2. Step 2: Convert to fraction form
    564.50/848.64 = 443/x
  3. Step 3: Cross multiply
    564.50x = 848.64 × 443
  4. Step 4: Simplify right side
    564.50x = 375,947.52
  5. Step 5: Solve for x
    x = 375,947.52/564.50
  6. Step 6: Final answer
    x = 665.98

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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.