Home / 280,100.99-386,572.04-159,260.38

Finding the Fourth Proportional to 280,100.99, 386,572.04 and 159,260.38

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Solution

The fourth proportional to 280,100.99, 386,572.04 and 159,260.38 is: 219,797.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,100.99 : 386,572.04 = 159,260.38 : x
  2. Step 2: Convert to fraction form
    280,100.99/386,572.04 = 159,260.38/x
  3. Step 3: Cross multiply
    280,100.99x = 386,572.04 × 159,260.38
  4. Step 4: Simplify right side
    280,100.99x = 61,565,607,258.61
  5. Step 5: Solve for x
    x = 61,565,607,258.61/280,100.99
  6. Step 6: Final answer
    x = 219,797.90

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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.