Home / 280,255.15-420,548.88-262,523.04

Finding the Fourth Proportional to 280,255.15, 420,548.88 and 262,523.04

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Solution

The fourth proportional to 280,255.15, 420,548.88 and 262,523.04 is: 393,940.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,255.15 : 420,548.88 = 262,523.04 : x
  2. Step 2: Convert to fraction form
    280,255.15/420,548.88 = 262,523.04/x
  3. Step 3: Cross multiply
    280,255.15x = 420,548.88 × 262,523.04
  4. Step 4: Simplify right side
    280,255.15x = 110,403,770,446.20
  5. Step 5: Solve for x
    x = 110,403,770,446.20/280,255.15
  6. Step 6: Final answer
    x = 393,940.20

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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.