Home / 203,231.25-280,458.59-112,587.39

Finding the Fourth Proportional to 203,231.25, 280,458.59 and 112,587.39

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Solution

The fourth proportional to 203,231.25, 280,458.59 and 112,587.39 is: 155,370.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,231.25 : 280,458.59 = 112,587.39 : x
  2. Step 2: Convert to fraction form
    203,231.25/280,458.59 = 112,587.39/x
  3. Step 3: Cross multiply
    203,231.25x = 280,458.59 × 112,587.39
  4. Step 4: Simplify right side
    203,231.25x = 31,576,100,088.24
  5. Step 5: Solve for x
    x = 31,576,100,088.24/203,231.25
  6. Step 6: Final answer
    x = 155,370.30

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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.