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Finding the Fourth Proportional to 207,230.28, 310,845.40 and 137,093.18

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Solution

The fourth proportional to 207,230.28, 310,845.40 and 137,093.18 is: 205,639.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,230.28 : 310,845.40 = 137,093.18 : x
  2. Step 2: Convert to fraction form
    207,230.28/310,845.40 = 137,093.18/x
  3. Step 3: Cross multiply
    207,230.28x = 310,845.40 × 137,093.18
  4. Step 4: Simplify right side
    207,230.28x = 42,614,784,374.37
  5. Step 5: Solve for x
    x = 42,614,784,374.37/207,230.28
  6. Step 6: Final answer
    x = 205,639.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.