Home / 391,769.12-587,099.43-166,903.16

Finding the Fourth Proportional to 391,769.12, 587,099.43 and 166,903.16

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Solution

The fourth proportional to 391,769.12, 587,099.43 and 166,903.16 is: 250,118.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,769.12 : 587,099.43 = 166,903.16 : x
  2. Step 2: Convert to fraction form
    391,769.12/587,099.43 = 166,903.16/x
  3. Step 3: Cross multiply
    391,769.12x = 587,099.43 × 166,903.16
  4. Step 4: Simplify right side
    391,769.12x = 97,988,747,165.70
  5. Step 5: Solve for x
    x = 97,988,747,165.70/391,769.12
  6. Step 6: Final answer
    x = 250,118.61

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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.