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Finding the Fourth Proportional to 302,239.85, 453,343.37 and 91,861.39

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Solution

The fourth proportional to 302,239.85, 453,343.37 and 91,861.39 is: 137,787.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,239.85 : 453,343.37 = 91,861.39 : x
  2. Step 2: Convert to fraction form
    302,239.85/453,343.37 = 91,861.39/x
  3. Step 3: Cross multiply
    302,239.85x = 453,343.37 × 91,861.39
  4. Step 4: Simplify right side
    302,239.85x = 41,644,749,672.80
  5. Step 5: Solve for x
    x = 41,644,749,672.80/302,239.85
  6. Step 6: Final answer
    x = 137,787.09

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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.