Home / 397,184.55-548,112.45-225,135.03

Finding the Fourth Proportional to 397,184.55, 548,112.45 and 225,135.03

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Solution

The fourth proportional to 397,184.55, 548,112.45 and 225,135.03 is: 310,685.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,184.55 : 548,112.45 = 225,135.03 : x
  2. Step 2: Convert to fraction form
    397,184.55/548,112.45 = 225,135.03/x
  3. Step 3: Cross multiply
    397,184.55x = 548,112.45 × 225,135.03
  4. Step 4: Simplify right side
    397,184.55x = 123,399,312,874.12
  5. Step 5: Solve for x
    x = 123,399,312,874.12/397,184.55
  6. Step 6: Final answer
    x = 310,685.08

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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.