Home / 439,280.80-658,921.20-106,856.80

Finding the Fourth Proportional to 439,280.80, 658,921.20 and 106,856.80

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Solution

The fourth proportional to 439,280.80, 658,921.20 and 106,856.80 is: 160,285.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,280.80 : 658,921.20 = 106,856.80 : x
  2. Step 2: Convert to fraction form
    439,280.80/658,921.20 = 106,856.80/x
  3. Step 3: Cross multiply
    439,280.80x = 658,921.20 × 106,856.80
  4. Step 4: Simplify right side
    439,280.80x = 70,410,210,884.16
  5. Step 5: Solve for x
    x = 70,410,210,884.16/439,280.80
  6. Step 6: Final answer
    x = 160,285.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.