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Finding the Fourth Proportional to 243,757.44, 336,387.84 and 143,157.12

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Solution

The fourth proportional to 243,757.44, 336,387.84 and 143,157.12 is: 197,558.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,757.44 : 336,387.84 = 143,157.12 : x
  2. Step 2: Convert to fraction form
    243,757.44/336,387.84 = 143,157.12/x
  3. Step 3: Cross multiply
    243,757.44x = 336,387.84 × 143,157.12
  4. Step 4: Simplify right side
    243,757.44x = 48,156,314,377.42
  5. Step 5: Solve for x
    x = 48,156,314,377.42/243,757.44
  6. Step 6: Final answer
    x = 197,558.34

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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.