Home / 203,216.13-280,435.23-112,571.82

Finding the Fourth Proportional to 203,216.13, 280,435.23 and 112,571.82

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Solution

The fourth proportional to 203,216.13, 280,435.23 and 112,571.82 is: 155,347.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,216.13 : 280,435.23 = 112,571.82 : x
  2. Step 2: Convert to fraction form
    203,216.13/280,435.23 = 112,571.82/x
  3. Step 3: Cross multiply
    203,216.13x = 280,435.23 × 112,571.82
  4. Step 4: Simplify right side
    203,216.13x = 31,569,104,233.22
  5. Step 5: Solve for x
    x = 31,569,104,233.22/203,216.13
  6. Step 6: Final answer
    x = 155,347.43

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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.