Home / 280,167.05-386,628.73-159,308.34

Finding the Fourth Proportional to 280,167.05, 386,628.73 and 159,308.34

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Solution

The fourth proportional to 280,167.05, 386,628.73 and 159,308.34 is: 219,844.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,167.05 : 386,628.73 = 159,308.34 : x
  2. Step 2: Convert to fraction form
    280,167.05/386,628.73 = 159,308.34/x
  3. Step 3: Cross multiply
    280,167.05x = 386,628.73 × 159,308.34
  4. Step 4: Simplify right side
    280,167.05x = 61,593,179,324.48
  5. Step 5: Solve for x
    x = 61,593,179,324.48/280,167.05
  6. Step 6: Final answer
    x = 219,844.48

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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.