Home / 280,559.20-420,377.10-162,023.80

Finding the Fourth Proportional to 280,559.20, 420,377.10 and 162,023.80

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Solution

The fourth proportional to 280,559.20, 420,377.10 and 162,023.80 is: 242,769.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,559.20 : 420,377.10 = 162,023.80 : x
  2. Step 2: Convert to fraction form
    280,559.20/420,377.10 = 162,023.80/x
  3. Step 3: Cross multiply
    280,559.20x = 420,377.10 × 162,023.80
  4. Step 4: Simplify right side
    280,559.20x = 68,111,095,174.98
  5. Step 5: Solve for x
    x = 68,111,095,174.98/280,559.20
  6. Step 6: Final answer
    x = 242,769.07

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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.