Home / 307,727.85-424,889.40-198,896.59

Finding the Fourth Proportional to 307,727.85, 424,889.40 and 198,896.59

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Solution

The fourth proportional to 307,727.85, 424,889.40 and 198,896.59 is: 274,622.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,727.85 : 424,889.40 = 198,896.59 : x
  2. Step 2: Convert to fraction form
    307,727.85/424,889.40 = 198,896.59/x
  3. Step 3: Cross multiply
    307,727.85x = 424,889.40 × 198,896.59
  4. Step 4: Simplify right side
    307,727.85x = 84,509,050,165.46
  5. Step 5: Solve for x
    x = 84,509,050,165.46/307,727.85
  6. Step 6: Final answer
    x = 274,622.69

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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.