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Finding the Fourth Proportional to 302,141.88, 453,229.38 and 99,729.72

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Solution

The fourth proportional to 302,141.88, 453,229.38 and 99,729.72 is: 149,600.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,141.88 : 453,229.38 = 99,729.72 : x
  2. Step 2: Convert to fraction form
    302,141.88/453,229.38 = 99,729.72/x
  3. Step 3: Cross multiply
    302,141.88x = 453,229.38 × 99,729.72
  4. Step 4: Simplify right side
    302,141.88x = 45,200,439,163.17
  5. Step 5: Solve for x
    x = 45,200,439,163.17/302,141.88
  6. Step 6: Final answer
    x = 149,600.05

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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.