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Finding the Fourth Proportional to 391,382.07, 587,240.24 and 166,848.26

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Solution

The fourth proportional to 391,382.07, 587,240.24 and 166,848.26 is: 250,343.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,382.07 : 587,240.24 = 166,848.26 : x
  2. Step 2: Convert to fraction form
    391,382.07/587,240.24 = 166,848.26/x
  3. Step 3: Cross multiply
    391,382.07x = 587,240.24 × 166,848.26
  4. Step 4: Simplify right side
    391,382.07x = 97,980,008,475.54
  5. Step 5: Solve for x
    x = 97,980,008,475.54/391,382.07
  6. Step 6: Final answer
    x = 250,343.63

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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.