Home / 307,564.43-461,125.19-188,990.78

Finding the Fourth Proportional to 307,564.43, 461,125.19 and 188,990.78

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Solution

The fourth proportional to 307,564.43, 461,125.19 and 188,990.78 is: 283,350.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,564.43 : 461,125.19 = 188,990.78 : x
  2. Step 2: Convert to fraction form
    307,564.43/461,125.19 = 188,990.78/x
  3. Step 3: Cross multiply
    307,564.43x = 461,125.19 × 188,990.78
  4. Step 4: Simplify right side
    307,564.43x = 87,148,407,502.60
  5. Step 5: Solve for x
    x = 87,148,407,502.60/307,564.43
  6. Step 6: Final answer
    x = 283,350.09

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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.