Home / 203,214.48-280,446.04-122,640.72

Finding the Fourth Proportional to 203,214.48, 280,446.04 and 122,640.72

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Solution

The fourth proportional to 203,214.48, 280,446.04 and 122,640.72 is: 169,250.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,214.48 : 280,446.04 = 122,640.72 : x
  2. Step 2: Convert to fraction form
    203,214.48/280,446.04 = 122,640.72/x
  3. Step 3: Cross multiply
    203,214.48x = 280,446.04 × 122,640.72
  4. Step 4: Simplify right side
    203,214.48x = 34,394,104,266.75
  5. Step 5: Solve for x
    x = 34,394,104,266.75/203,214.48
  6. Step 6: Final answer
    x = 169,250.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.