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Finding the Fourth Proportional to 299,656.80, 449,541.36 and 99,958.32

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Solution

The fourth proportional to 299,656.80, 449,541.36 and 99,958.32 is: 149,956.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,656.80 : 449,541.36 = 99,958.32 : x
  2. Step 2: Convert to fraction form
    299,656.80/449,541.36 = 99,958.32/x
  3. Step 3: Cross multiply
    299,656.80x = 449,541.36 × 99,958.32
  4. Step 4: Simplify right side
    299,656.80x = 44,935,399,116.12
  5. Step 5: Solve for x
    x = 44,935,399,116.12/299,656.80
  6. Step 6: Final answer
    x = 149,956.21

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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.