Home / 397,528.89-548,587.18-225,480.33

Finding the Fourth Proportional to 397,528.89, 548,587.18 and 225,480.33

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Solution

The fourth proportional to 397,528.89, 548,587.18 and 225,480.33 is: 311,161.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,528.89 : 548,587.18 = 225,480.33 : x
  2. Step 2: Convert to fraction form
    397,528.89/548,587.18 = 225,480.33/x
  3. Step 3: Cross multiply
    397,528.89x = 548,587.18 × 225,480.33
  4. Step 4: Simplify right side
    397,528.89x = 123,695,617,816.47
  5. Step 5: Solve for x
    x = 123,695,617,816.47/397,528.89
  6. Step 6: Final answer
    x = 311,161.33

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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.