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Finding the Fourth Proportional to 171,078.40, 256,617.60 and 162,913.60

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Solution

The fourth proportional to 171,078.40, 256,617.60 and 162,913.60 is: 244,370.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,078.40 : 256,617.60 = 162,913.60 : x
  2. Step 2: Convert to fraction form
    171,078.40/256,617.60 = 162,913.60/x
  3. Step 3: Cross multiply
    171,078.40x = 256,617.60 × 162,913.60
  4. Step 4: Simplify right side
    171,078.40x = 41,806,497,039.36
  5. Step 5: Solve for x
    x = 41,806,497,039.36/171,078.40
  6. Step 6: Final answer
    x = 244,370.40

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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.