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Finding the Fourth Proportional to 243,997.89, 336,716.98 and 136,567.90

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Solution

The fourth proportional to 243,997.89, 336,716.98 and 136,567.90 is: 188,463.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,997.89 : 336,716.98 = 136,567.90 : x
  2. Step 2: Convert to fraction form
    243,997.89/336,716.98 = 136,567.90/x
  3. Step 3: Cross multiply
    243,997.89x = 336,716.98 × 136,567.90
  4. Step 4: Simplify right side
    243,997.89x = 45,984,730,852.94
  5. Step 5: Solve for x
    x = 45,984,730,852.94/243,997.89
  6. Step 6: Final answer
    x = 188,463.64

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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.