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Finding the Fourth Proportional to 303,099.21, 418,103.28 and 189,725.13

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Solution

The fourth proportional to 303,099.21, 418,103.28 and 189,725.13 is: 261,712.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,099.21 : 418,103.28 = 189,725.13 : x
  2. Step 2: Convert to fraction form
    303,099.21/418,103.28 = 189,725.13/x
  3. Step 3: Cross multiply
    303,099.21x = 418,103.28 × 189,725.13
  4. Step 4: Simplify right side
    303,099.21x = 79,324,699,151.43
  5. Step 5: Solve for x
    x = 79,324,699,151.43/303,099.21
  6. Step 6: Final answer
    x = 261,712.00

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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.