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Finding the Fourth Proportional to 243,974.64, 336,684.95 and 136,544.66

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Solution

The fourth proportional to 243,974.64, 336,684.95 and 136,544.66 is: 188,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,974.64 : 336,684.95 = 136,544.66 : x
  2. Step 2: Convert to fraction form
    243,974.64/336,684.95 = 136,544.66/x
  3. Step 3: Cross multiply
    243,974.64x = 336,684.95 × 136,544.66
  4. Step 4: Simplify right side
    243,974.64x = 45,972,531,433.33
  5. Step 5: Solve for x
    x = 45,972,531,433.33/243,974.64
  6. Step 6: Final answer
    x = 188,431.60

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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.