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Finding the Fourth Proportional to 585.34, 877.77 and 219.94

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Solution

The fourth proportional to 585.34, 877.77 and 219.94 is: 329.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    585.34 : 877.77 = 219.94 : x
  2. Step 2: Convert to fraction form
    585.34/877.77 = 219.94/x
  3. Step 3: Cross multiply
    585.34x = 877.77 × 219.94
  4. Step 4: Simplify right side
    585.34x = 193,056.73
  5. Step 5: Solve for x
    x = 193,056.73/585.34
  6. Step 6: Final answer
    x = 329.82

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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.