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Finding the Fourth Proportional to 203,365.26, 280,660.88 and 112,749.64

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Solution

The fourth proportional to 203,365.26, 280,660.88 and 112,749.64 is: 155,603.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,365.26 : 280,660.88 = 112,749.64 : x
  2. Step 2: Convert to fraction form
    203,365.26/280,660.88 = 112,749.64/x
  3. Step 3: Cross multiply
    203,365.26x = 280,660.88 × 112,749.64
  4. Step 4: Simplify right side
    203,365.26x = 31,644,413,182.08
  5. Step 5: Solve for x
    x = 31,644,413,182.08/203,365.26
  6. Step 6: Final answer
    x = 155,603.83

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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.