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Finding the Fourth Proportional to 253,511.24, 380,640.68 and 141,410.48

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Solution

The fourth proportional to 253,511.24, 380,640.68 and 141,410.48 is: 212,324.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,511.24 : 380,640.68 = 141,410.48 : x
  2. Step 2: Convert to fraction form
    253,511.24/380,640.68 = 141,410.48/x
  3. Step 3: Cross multiply
    253,511.24x = 380,640.68 × 141,410.48
  4. Step 4: Simplify right side
    253,511.24x = 53,826,581,266.33
  5. Step 5: Solve for x
    x = 53,826,581,266.33/253,511.24
  6. Step 6: Final answer
    x = 212,324.24

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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.