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Finding the Fourth Proportional to 391,788.44, 587,904.09 and 167,127.65

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Solution

The fourth proportional to 391,788.44, 587,904.09 and 167,127.65 is: 250,785.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,788.44 : 587,904.09 = 167,127.65 : x
  2. Step 2: Convert to fraction form
    391,788.44/587,904.09 = 167,127.65/x
  3. Step 3: Cross multiply
    391,788.44x = 587,904.09 × 167,127.65
  4. Step 4: Simplify right side
    391,788.44x = 98,255,025,420.84
  5. Step 5: Solve for x
    x = 98,255,025,420.84/391,788.44
  6. Step 6: Final answer
    x = 250,785.93

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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.