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Finding the Fourth Proportional to 250,112.72, 374,843.64 and 190,730

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Solution

The fourth proportional to 250,112.72, 374,843.64 and 190,730 is: 285,846.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,112.72 : 374,843.64 = 190,730 : x
  2. Step 2: Convert to fraction form
    250,112.72/374,843.64 = 190,730/x
  3. Step 3: Cross multiply
    250,112.72x = 374,843.64 × 190,730
  4. Step 4: Simplify right side
    250,112.72x = 71,493,927,457.20
  5. Step 5: Solve for x
    x = 71,493,927,457.20/250,112.72
  6. Step 6: Final answer
    x = 285,846.83

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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.