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Finding the Fourth Proportional to 449,168.64, 619,836.48 and 247,960.32

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Solution

The fourth proportional to 449,168.64, 619,836.48 and 247,960.32 is: 342,176.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,168.64 : 619,836.48 = 247,960.32 : x
  2. Step 2: Convert to fraction form
    449,168.64/619,836.48 = 247,960.32/x
  3. Step 3: Cross multiply
    449,168.64x = 619,836.48 × 247,960.32
  4. Step 4: Simplify right side
    449,168.64x = 153,694,851,928.47
  5. Step 5: Solve for x
    x = 153,694,851,928.47/449,168.64
  6. Step 6: Final answer
    x = 342,176.27

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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.