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Finding the Fourth Proportional to 445,297.32, 668,114.10 and 267,928.88

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Solution

The fourth proportional to 445,297.32, 668,114.10 and 267,928.88 is: 401,994.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,297.32 : 668,114.10 = 267,928.88 : x
  2. Step 2: Convert to fraction form
    445,297.32/668,114.10 = 267,928.88/x
  3. Step 3: Cross multiply
    445,297.32x = 668,114.10 × 267,928.88
  4. Step 4: Simplify right side
    445,297.32x = 179,007,064,195.49
  5. Step 5: Solve for x
    x = 179,007,064,195.49/445,297.32
  6. Step 6: Final answer
    x = 401,994.48

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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.