Home / 254,542.70-381,974.85-142,296.55

Finding the Fourth Proportional to 254,542.70, 381,974.85 and 142,296.55

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Solution

The fourth proportional to 254,542.70, 381,974.85 and 142,296.55 is: 213,534.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,542.70 : 381,974.85 = 142,296.55 : x
  2. Step 2: Convert to fraction form
    254,542.70/381,974.85 = 142,296.55/x
  3. Step 3: Cross multiply
    254,542.70x = 381,974.85 × 142,296.55
  4. Step 4: Simplify right side
    254,542.70x = 54,353,702,386.83
  5. Step 5: Solve for x
    x = 54,353,702,386.83/254,542.70
  6. Step 6: Final answer
    x = 213,534.71

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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.