Home / 280,269.05-420,551.19-162,023.42

Finding the Fourth Proportional to 280,269.05, 420,551.19 and 162,023.42

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Solution

The fourth proportional to 280,269.05, 420,551.19 and 162,023.42 is: 243,120.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,269.05 : 420,551.19 = 162,023.42 : x
  2. Step 2: Convert to fraction form
    280,269.05/420,551.19 = 162,023.42/x
  3. Step 3: Cross multiply
    280,269.05x = 420,551.19 × 162,023.42
  4. Step 4: Simplify right side
    280,269.05x = 68,139,143,140.25
  5. Step 5: Solve for x
    x = 68,139,143,140.25/280,269.05
  6. Step 6: Final answer
    x = 243,120.47

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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.