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Finding the Fourth Proportional to 247,321.36, 340,931.40 and 193,512.96

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Solution

The fourth proportional to 247,321.36, 340,931.40 and 193,512.96 is: 266,756.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,321.36 : 340,931.40 = 193,512.96 : x
  2. Step 2: Convert to fraction form
    247,321.36/340,931.40 = 193,512.96/x
  3. Step 3: Cross multiply
    247,321.36x = 340,931.40 × 193,512.96
  4. Step 4: Simplify right side
    247,321.36x = 65,974,644,370.94
  5. Step 5: Solve for x
    x = 65,974,644,370.94/247,321.36
  6. Step 6: Final answer
    x = 266,756.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.