Home / 280,270.05-420,552.69-162,024.42

Finding the Fourth Proportional to 280,270.05, 420,552.69 and 162,024.42

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Solution

The fourth proportional to 280,270.05, 420,552.69 and 162,024.42 is: 243,121.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,270.05 : 420,552.69 = 162,024.42 : x
  2. Step 2: Convert to fraction form
    280,270.05/420,552.69 = 162,024.42/x
  3. Step 3: Cross multiply
    280,270.05x = 420,552.69 × 162,024.42
  4. Step 4: Simplify right side
    280,270.05x = 68,139,805,676.69
  5. Step 5: Solve for x
    x = 68,139,805,676.69/280,270.05
  6. Step 6: Final answer
    x = 243,121.97

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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.