Home / 307,053.32-423,734.45-178,016.85

Finding the Fourth Proportional to 307,053.32, 423,734.45 and 178,016.85

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Solution

The fourth proportional to 307,053.32, 423,734.45 and 178,016.85 is: 245,663.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,053.32 : 423,734.45 = 178,016.85 : x
  2. Step 2: Convert to fraction form
    307,053.32/423,734.45 = 178,016.85/x
  3. Step 3: Cross multiply
    307,053.32x = 423,734.45 × 178,016.85
  4. Step 4: Simplify right side
    307,053.32x = 75,431,871,135.40
  5. Step 5: Solve for x
    x = 75,431,871,135.40/307,053.32
  6. Step 6: Final answer
    x = 245,663.76

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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.