Home / 315,074.20-472,179.30-202,408.60

Finding the Fourth Proportional to 315,074.20, 472,179.30 and 202,408.60

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Solution

The fourth proportional to 315,074.20, 472,179.30 and 202,408.60 is: 303,335.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,074.20 : 472,179.30 = 202,408.60 : x
  2. Step 2: Convert to fraction form
    315,074.20/472,179.30 = 202,408.60/x
  3. Step 3: Cross multiply
    315,074.20x = 472,179.30 × 202,408.60
  4. Step 4: Simplify right side
    315,074.20x = 95,573,151,061.98
  5. Step 5: Solve for x
    x = 95,573,151,061.98/315,074.20
  6. Step 6: Final answer
    x = 303,335.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.