Home / 280,015.36-386,494.86-159,227.44

Finding the Fourth Proportional to 280,015.36, 386,494.86 and 159,227.44

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Solution

The fourth proportional to 280,015.36, 386,494.86 and 159,227.44 is: 219,775.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,015.36 : 386,494.86 = 159,227.44 : x
  2. Step 2: Convert to fraction form
    280,015.36/386,494.86 = 159,227.44/x
  3. Step 3: Cross multiply
    280,015.36x = 386,494.86 × 159,227.44
  4. Step 4: Simplify right side
    280,015.36x = 61,540,587,130.96
  5. Step 5: Solve for x
    x = 61,540,587,130.96/280,015.36
  6. Step 6: Final answer
    x = 219,775.75

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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.