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Finding the Fourth Proportional to 584.01, 876.05 and 218.76

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Solution

The fourth proportional to 584.01, 876.05 and 218.76 is: 328.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    584.01 : 876.05 = 218.76 : x
  2. Step 2: Convert to fraction form
    584.01/876.05 = 218.76/x
  3. Step 3: Cross multiply
    584.01x = 876.05 × 218.76
  4. Step 4: Simplify right side
    584.01x = 191,643.60
  5. Step 5: Solve for x
    x = 191,643.60/584.01
  6. Step 6: Final answer
    x = 328.15

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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.