Home / 203,290.25-280,587.35-135,309.92

Finding the Fourth Proportional to 203,290.25, 280,587.35 and 135,309.92

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Solution

The fourth proportional to 203,290.25, 280,587.35 and 135,309.92 is: 186,758.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,290.25 : 280,587.35 = 135,309.92 : x
  2. Step 2: Convert to fraction form
    203,290.25/280,587.35 = 135,309.92/x
  3. Step 3: Cross multiply
    203,290.25x = 280,587.35 × 135,309.92
  4. Step 4: Simplify right side
    203,290.25x = 37,966,250,816.85
  5. Step 5: Solve for x
    x = 37,966,250,816.85/203,290.25
  6. Step 6: Final answer
    x = 186,758.84

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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.