Home / 315,290.20-472,753.26-215,571.16

Finding the Fourth Proportional to 315,290.20, 472,753.26 and 215,571.16

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Solution

The fourth proportional to 315,290.20, 472,753.26 and 215,571.16 is: 323,232.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,290.20 : 472,753.26 = 215,571.16 : x
  2. Step 2: Convert to fraction form
    315,290.20/472,753.26 = 215,571.16/x
  3. Step 3: Cross multiply
    315,290.20x = 472,753.26 × 215,571.16
  4. Step 4: Simplify right side
    315,290.20x = 101,911,968,651.98
  5. Step 5: Solve for x
    x = 101,911,968,651.98/315,290.20
  6. Step 6: Final answer
    x = 323,232.28

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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.