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Finding the Fourth Proportional to 583.88, 875.66 and 218.66

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Solution

The fourth proportional to 583.88, 875.66 and 218.66 is: 327.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.88 : 875.66 = 218.66 : x
  2. Step 2: Convert to fraction form
    583.88/875.66 = 218.66/x
  3. Step 3: Cross multiply
    583.88x = 875.66 × 218.66
  4. Step 4: Simplify right side
    583.88x = 191,471.82
  5. Step 5: Solve for x
    x = 191,471.82/583.88
  6. Step 6: Final answer
    x = 327.93

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Double scale
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1.5x scale

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.