Home / 203,117.25-280,298.38-112,471.27

Finding the Fourth Proportional to 203,117.25, 280,298.38 and 112,471.27

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Solution

The fourth proportional to 203,117.25, 280,298.38 and 112,471.27 is: 155,208.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,117.25 : 280,298.38 = 112,471.27 : x
  2. Step 2: Convert to fraction form
    203,117.25/280,298.38 = 112,471.27/x
  3. Step 3: Cross multiply
    203,117.25x = 280,298.38 × 112,471.27
  4. Step 4: Simplify right side
    203,117.25x = 31,525,515,058.72
  5. Step 5: Solve for x
    x = 31,525,515,058.72/203,117.25
  6. Step 6: Final answer
    x = 155,208.46

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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.