Home / 397,212.23-548,019.47-225,116.69

Finding the Fourth Proportional to 397,212.23, 548,019.47 and 225,116.69

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Solution

The fourth proportional to 397,212.23, 548,019.47 and 225,116.69 is: 310,585.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,212.23 : 548,019.47 = 225,116.69 : x
  2. Step 2: Convert to fraction form
    397,212.23/548,019.47 = 225,116.69/x
  3. Step 3: Cross multiply
    397,212.23x = 548,019.47 × 225,116.69
  4. Step 4: Simplify right side
    397,212.23x = 123,368,328,780.98
  5. Step 5: Solve for x
    x = 123,368,328,780.98/397,212.23
  6. Step 6: Final answer
    x = 310,585.42

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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.