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Finding the Fourth Proportional to 583.34, 874.89 and 218.00

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Solution

The fourth proportional to 583.34, 874.89 and 218.00 is: 326.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.34 : 874.89 = 218.00 : x
  2. Step 2: Convert to fraction form
    583.34/874.89 = 218.00/x
  3. Step 3: Cross multiply
    583.34x = 874.89 × 218.00
  4. Step 4: Simplify right side
    583.34x = 190,728.21
  5. Step 5: Solve for x
    x = 190,728.21/583.34
  6. Step 6: Final answer
    x = 326.96

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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.