Home / 307,738.62-424,904.26-198,907.36

Finding the Fourth Proportional to 307,738.62, 424,904.26 and 198,907.36

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Solution

The fourth proportional to 307,738.62, 424,904.26 and 198,907.36 is: 274,637.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,738.62 : 424,904.26 = 198,907.36 : x
  2. Step 2: Convert to fraction form
    307,738.62/424,904.26 = 198,907.36/x
  3. Step 3: Cross multiply
    307,738.62x = 424,904.26 × 198,907.36
  4. Step 4: Simplify right side
    307,738.62x = 84,516,584,609.35
  5. Step 5: Solve for x
    x = 84,516,584,609.35/307,738.62
  6. Step 6: Final answer
    x = 274,637.56

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1.5x scale

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.