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Finding the Fourth Proportional to 243,882.36, 336,564.90 and 136,449.96

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Solution

The fourth proportional to 243,882.36, 336,564.90 and 136,449.96 is: 188,305.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,882.36 : 336,564.90 = 136,449.96 : x
  2. Step 2: Convert to fraction form
    243,882.36/336,564.90 = 136,449.96/x
  3. Step 3: Cross multiply
    243,882.36x = 336,564.90 × 136,449.96
  4. Step 4: Simplify right side
    243,882.36x = 45,924,267,142.40
  5. Step 5: Solve for x
    x = 45,924,267,142.40/243,882.36
  6. Step 6: Final answer
    x = 188,305.00

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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.