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Finding the Fourth Proportional to 203,090.63, 280,273.83 and 112,446.59

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Solution

The fourth proportional to 203,090.63, 280,273.83 and 112,446.59 is: 155,181.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,090.63 : 280,273.83 = 112,446.59 : x
  2. Step 2: Convert to fraction form
    203,090.63/280,273.83 = 112,446.59/x
  3. Step 3: Cross multiply
    203,090.63x = 280,273.83 × 112,446.59
  4. Step 4: Simplify right side
    203,090.63x = 31,515,837,150.42
  5. Step 5: Solve for x
    x = 31,515,837,150.42/203,090.63
  6. Step 6: Final answer
    x = 155,181.15

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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.