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Finding the Fourth Proportional to 586.14, 879.48 and 261.60

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Solution

The fourth proportional to 586.14, 879.48 and 261.60 is: 392.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.14 : 879.48 = 261.60 : x
  2. Step 2: Convert to fraction form
    586.14/879.48 = 261.60/x
  3. Step 3: Cross multiply
    586.14x = 879.48 × 261.60
  4. Step 4: Simplify right side
    586.14x = 230,071.97
  5. Step 5: Solve for x
    x = 230,071.97/586.14
  6. Step 6: Final answer
    x = 392.52

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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.