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Finding the Fourth Proportional to 262,336.32, 393,334.92 and 143,975.88

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Solution

The fourth proportional to 262,336.32, 393,334.92 and 143,975.88 is: 215,870.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,336.32 : 393,334.92 = 143,975.88 : x
  2. Step 2: Convert to fraction form
    262,336.32/393,334.92 = 143,975.88/x
  3. Step 3: Cross multiply
    262,336.32x = 393,334.92 × 143,975.88
  4. Step 4: Simplify right side
    262,336.32x = 56,630,741,241.73
  5. Step 5: Solve for x
    x = 56,630,741,241.73/262,336.32
  6. Step 6: Final answer
    x = 215,870.76

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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.