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Finding the Fourth Proportional to 203,091.01, 280,274.36 and 112,446.98

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Solution

The fourth proportional to 203,091.01, 280,274.36 and 112,446.98 is: 155,181.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,091.01 : 280,274.36 = 112,446.98 : x
  2. Step 2: Convert to fraction form
    203,091.01/280,274.36 = 112,446.98/x
  3. Step 3: Cross multiply
    203,091.01x = 280,274.36 × 112,446.98
  4. Step 4: Simplify right side
    203,091.01x = 31,516,003,389.83
  5. Step 5: Solve for x
    x = 31,516,003,389.83/203,091.01
  6. Step 6: Final answer
    x = 155,181.68

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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.