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Finding the Fourth Proportional to 243,496.94, 336,019.32 and 136,067.85

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Solution

The fourth proportional to 243,496.94, 336,019.32 and 136,067.85 is: 187,770.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,496.94 : 336,019.32 = 136,067.85 : x
  2. Step 2: Convert to fraction form
    243,496.94/336,019.32 = 136,067.85/x
  3. Step 3: Cross multiply
    243,496.94x = 336,019.32 × 136,067.85
  4. Step 4: Simplify right side
    243,496.94x = 45,721,426,430.86
  5. Step 5: Solve for x
    x = 45,721,426,430.86/243,496.94
  6. Step 6: Final answer
    x = 187,770.03

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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.