Home / 280,022.18-386,453.57-159,201.36

Finding the Fourth Proportional to 280,022.18, 386,453.57 and 159,201.36

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Solution

The fourth proportional to 280,022.18, 386,453.57 and 159,201.36 is: 219,710.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,022.18 : 386,453.57 = 159,201.36 : x
  2. Step 2: Convert to fraction form
    280,022.18/386,453.57 = 159,201.36/x
  3. Step 3: Cross multiply
    280,022.18x = 386,453.57 × 159,201.36
  4. Step 4: Simplify right side
    280,022.18x = 61,523,933,124.85
  5. Step 5: Solve for x
    x = 61,523,933,124.85/280,022.18
  6. Step 6: Final answer
    x = 219,710.93

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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.