Home / 397,118.18-548,102.80-235,942.20

Finding the Fourth Proportional to 397,118.18, 548,102.80 and 235,942.20

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Solution

The fourth proportional to 397,118.18, 548,102.80 and 235,942.20 is: 325,647.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,118.18 : 548,102.80 = 235,942.20 : x
  2. Step 2: Convert to fraction form
    397,118.18/548,102.80 = 235,942.20/x
  3. Step 3: Cross multiply
    397,118.18x = 548,102.80 × 235,942.20
  4. Step 4: Simplify right side
    397,118.18x = 129,320,580,458.16
  5. Step 5: Solve for x
    x = 129,320,580,458.16/397,118.18
  6. Step 6: Final answer
    x = 325,647.60

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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.