Home / 280,195.64-420,292.38-167,909.66

Finding the Fourth Proportional to 280,195.64, 420,292.38 and 167,909.66

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Solution

The fourth proportional to 280,195.64, 420,292.38 and 167,909.66 is: 251,863.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,195.64 : 420,292.38 = 167,909.66 : x
  2. Step 2: Convert to fraction form
    280,195.64/420,292.38 = 167,909.66/x
  3. Step 3: Cross multiply
    280,195.64x = 420,292.38 × 167,909.66
  4. Step 4: Simplify right side
    280,195.64x = 70,571,150,626.39
  5. Step 5: Solve for x
    x = 70,571,150,626.39/280,195.64
  6. Step 6: Final answer
    x = 251,863.84

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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.