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Finding the Fourth Proportional to 155,944.42, 215,203.42 and 84,324.48

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Solution

The fourth proportional to 155,944.42, 215,203.42 and 84,324.48 is: 116,367.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,944.42 : 215,203.42 = 84,324.48 : x
  2. Step 2: Convert to fraction form
    155,944.42/215,203.42 = 84,324.48/x
  3. Step 3: Cross multiply
    155,944.42x = 215,203.42 × 84,324.48
  4. Step 4: Simplify right side
    155,944.42x = 18,146,916,485.72
  5. Step 5: Solve for x
    x = 18,146,916,485.72/155,944.42
  6. Step 6: Final answer
    x = 116,367.85

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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.