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Finding the Fourth Proportional to 281,003.01, 421,073.60 and 190,931.01

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Solution

The fourth proportional to 281,003.01, 421,073.60 and 190,931.01 is: 286,103.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,003.01 : 421,073.60 = 190,931.01 : x
  2. Step 2: Convert to fraction form
    281,003.01/421,073.60 = 190,931.01/x
  3. Step 3: Cross multiply
    281,003.01x = 421,073.60 × 190,931.01
  4. Step 4: Simplify right side
    281,003.01x = 80,396,006,777.68
  5. Step 5: Solve for x
    x = 80,396,006,777.68/281,003.01
  6. Step 6: Final answer
    x = 286,103.72

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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.