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Finding the Fourth Proportional to 302,615, 453,668.40 and 131,709.08

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Solution

The fourth proportional to 302,615, 453,668.40 and 131,709.08 is: 197,453.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,615 : 453,668.40 = 131,709.08 : x
  2. Step 2: Convert to fraction form
    302,615/453,668.40 = 131,709.08/x
  3. Step 3: Cross multiply
    302,615x = 453,668.40 × 131,709.08
  4. Step 4: Simplify right side
    302,615x = 59,752,247,589.07
  5. Step 5: Solve for x
    x = 59,752,247,589.07/302,615
  6. Step 6: Final answer
    x = 197,453.03

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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.