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Finding the Fourth Proportional to 586.60, 879.92 and 191.36

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Solution

The fourth proportional to 586.60, 879.92 and 191.36 is: 287.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.60 : 879.92 = 191.36 : x
  2. Step 2: Convert to fraction form
    586.60/879.92 = 191.36/x
  3. Step 3: Cross multiply
    586.60x = 879.92 × 191.36
  4. Step 4: Simplify right side
    586.60x = 168,381.49
  5. Step 5: Solve for x
    x = 168,381.49/586.60
  6. Step 6: Final answer
    x = 287.05

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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.