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Finding the Fourth Proportional to 565.48, 848.14 and 218.98

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Solution

The fourth proportional to 565.48, 848.14 and 218.98 is: 328.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    565.48 : 848.14 = 218.98 : x
  2. Step 2: Convert to fraction form
    565.48/848.14 = 218.98/x
  3. Step 3: Cross multiply
    565.48x = 848.14 × 218.98
  4. Step 4: Simplify right side
    565.48x = 185,720.36
  5. Step 5: Solve for x
    x = 185,720.36/565.48
  6. Step 6: Final answer
    x = 328.43

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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.