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Finding the Fourth Proportional to 207,963.53, 310,198.01 and 188,807.15

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Solution

The fourth proportional to 207,963.53, 310,198.01 and 188,807.15 is: 281,624.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,963.53 : 310,198.01 = 188,807.15 : x
  2. Step 2: Convert to fraction form
    207,963.53/310,198.01 = 188,807.15/x
  3. Step 3: Cross multiply
    207,963.53x = 310,198.01 × 188,807.15
  4. Step 4: Simplify right side
    207,963.53x = 58,567,602,035.23
  5. Step 5: Solve for x
    x = 58,567,602,035.23/207,963.53
  6. Step 6: Final answer
    x = 281,624.39

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.