Home / 307,057.82-423,740.66-178,021.35

Finding the Fourth Proportional to 307,057.82, 423,740.66 and 178,021.35

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Solution

The fourth proportional to 307,057.82, 423,740.66 and 178,021.35 is: 245,669.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,057.82 : 423,740.66 = 178,021.35 : x
  2. Step 2: Convert to fraction form
    307,057.82/423,740.66 = 178,021.35/x
  3. Step 3: Cross multiply
    307,057.82x = 423,740.66 × 178,021.35
  4. Step 4: Simplify right side
    307,057.82x = 75,434,883,452.98
  5. Step 5: Solve for x
    x = 75,434,883,452.98/307,057.82
  6. Step 6: Final answer
    x = 245,669.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.