Home / 280,217.59-386,708.82-159,376.28

Finding the Fourth Proportional to 280,217.59, 386,708.82 and 159,376.28

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Solution

The fourth proportional to 280,217.59, 386,708.82 and 159,376.28 is: 219,944.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,217.59 : 386,708.82 = 159,376.28 : x
  2. Step 2: Convert to fraction form
    280,217.59/386,708.82 = 159,376.28/x
  3. Step 3: Cross multiply
    280,217.59x = 386,708.82 × 159,376.28
  4. Step 4: Simplify right side
    280,217.59x = 61,632,210,643.58
  5. Step 5: Solve for x
    x = 61,632,210,643.58/280,217.59
  6. Step 6: Final answer
    x = 219,944.12

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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.