Home / 280,056.20-386,462.16-159,180.68

Finding the Fourth Proportional to 280,056.20, 386,462.16 and 159,180.68

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Solution

The fourth proportional to 280,056.20, 386,462.16 and 159,180.68 is: 219,660.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,056.20 : 386,462.16 = 159,180.68 : x
  2. Step 2: Convert to fraction form
    280,056.20/386,462.16 = 159,180.68/x
  3. Step 3: Cross multiply
    280,056.20x = 386,462.16 × 159,180.68
  4. Step 4: Simplify right side
    280,056.20x = 61,517,309,423.07
  5. Step 5: Solve for x
    x = 61,517,309,423.07/280,056.20
  6. Step 6: Final answer
    x = 219,660.59

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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.