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Finding the Fourth Proportional to 245,261.99, 367,882.65 and 85,374.38

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Solution

The fourth proportional to 245,261.99, 367,882.65 and 85,374.38 is: 128,057.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,261.99 : 367,882.65 = 85,374.38 : x
  2. Step 2: Convert to fraction form
    245,261.99/367,882.65 = 85,374.38/x
  3. Step 3: Cross multiply
    245,261.99x = 367,882.65 × 85,374.38
  4. Step 4: Simplify right side
    245,261.99x = 31,407,751,317.09
  5. Step 5: Solve for x
    x = 31,407,751,317.09/245,261.99
  6. Step 6: Final answer
    x = 128,057.97

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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.