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Finding the Fourth Proportional to 583.47, 875.64 and 218.37

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Solution

The fourth proportional to 583.47, 875.64 and 218.37 is: 327.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.47 : 875.64 = 218.37 : x
  2. Step 2: Convert to fraction form
    583.47/875.64 = 218.37/x
  3. Step 3: Cross multiply
    583.47x = 875.64 × 218.37
  4. Step 4: Simplify right side
    583.47x = 191,213.51
  5. Step 5: Solve for x
    x = 191,213.51/583.47
  6. Step 6: Final answer
    x = 327.72

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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.