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Finding the Fourth Proportional to 586.09, 879.19 and 153.25

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Solution

The fourth proportional to 586.09, 879.19 and 153.25 is: 229.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.09 : 879.19 = 153.25 : x
  2. Step 2: Convert to fraction form
    586.09/879.19 = 153.25/x
  3. Step 3: Cross multiply
    586.09x = 879.19 × 153.25
  4. Step 4: Simplify right side
    586.09x = 134,735.87
  5. Step 5: Solve for x
    x = 134,735.87/586.09
  6. Step 6: Final answer
    x = 229.89

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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.