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Finding the Fourth Proportional to 583.91, 875.56 and 218.50

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Solution

The fourth proportional to 583.91, 875.56 and 218.50 is: 327.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.91 : 875.56 = 218.50 : x
  2. Step 2: Convert to fraction form
    583.91/875.56 = 218.50/x
  3. Step 3: Cross multiply
    583.91x = 875.56 × 218.50
  4. Step 4: Simplify right side
    583.91x = 191,307.53
  5. Step 5: Solve for x
    x = 191,307.53/583.91
  6. Step 6: Final answer
    x = 327.63

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Double scale
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Similar ratio
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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.