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Finding the Fourth Proportional to 245,293.20, 367,745.40 and 134,485.20

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Solution

The fourth proportional to 245,293.20, 367,745.40 and 134,485.20 is: 201,621.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,293.20 : 367,745.40 = 134,485.20 : x
  2. Step 2: Convert to fraction form
    245,293.20/367,745.40 = 134,485.20/x
  3. Step 3: Cross multiply
    245,293.20x = 367,745.40 × 134,485.20
  4. Step 4: Simplify right side
    245,293.20x = 49,456,313,668.08
  5. Step 5: Solve for x
    x = 49,456,313,668.08/245,293.20
  6. Step 6: Final answer
    x = 201,621.22

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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.