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Finding the Fourth Proportional to 302,147.40, 453,285.90 and 91,806.60

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Solution

The fourth proportional to 302,147.40, 453,285.90 and 91,806.60 is: 137,729.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,147.40 : 453,285.90 = 91,806.60 : x
  2. Step 2: Convert to fraction form
    302,147.40/453,285.90 = 91,806.60/x
  3. Step 3: Cross multiply
    302,147.40x = 453,285.90 × 91,806.60
  4. Step 4: Simplify right side
    302,147.40x = 41,614,637,306.94
  5. Step 5: Solve for x
    x = 41,614,637,306.94/302,147.40
  6. Step 6: Final answer
    x = 137,729.59

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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.