Home / 280,861.20-422,166.60-275,612.40

Finding the Fourth Proportional to 280,861.20, 422,166.60 and 275,612.40

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Solution

The fourth proportional to 280,861.20, 422,166.60 and 275,612.40 is: 414,277.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,861.20 : 422,166.60 = 275,612.40 : x
  2. Step 2: Convert to fraction form
    280,861.20/422,166.60 = 275,612.40/x
  3. Step 3: Cross multiply
    280,861.20x = 422,166.60 × 275,612.40
  4. Step 4: Simplify right side
    280,861.20x = 116,354,349,825.84
  5. Step 5: Solve for x
    x = 116,354,349,825.84/280,861.20
  6. Step 6: Final answer
    x = 414,277.05

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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.