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Finding the Fourth Proportional to 583.88, 875.85 and 218.64

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Solution

The fourth proportional to 583.88, 875.85 and 218.64 is: 327.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.88 : 875.85 = 218.64 : x
  2. Step 2: Convert to fraction form
    583.88/875.85 = 218.64/x
  3. Step 3: Cross multiply
    583.88x = 875.85 × 218.64
  4. Step 4: Simplify right side
    583.88x = 191,495.84
  5. Step 5: Solve for x
    x = 191,495.84/583.88
  6. Step 6: Final answer
    x = 327.97

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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.