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Finding the Fourth Proportional to 583.89, 875.30 and 258.89

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Solution

The fourth proportional to 583.89, 875.30 and 258.89 is: 388.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.89 : 875.30 = 258.89 : x
  2. Step 2: Convert to fraction form
    583.89/875.30 = 258.89/x
  3. Step 3: Cross multiply
    583.89x = 875.30 × 258.89
  4. Step 4: Simplify right side
    583.89x = 226,600.75
  5. Step 5: Solve for x
    x = 226,600.75/583.89
  6. Step 6: Final answer
    x = 388.09

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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.