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Finding the Fourth Proportional to 306,600.49, 459,900.90 and 137,923.77

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Solution

The fourth proportional to 306,600.49, 459,900.90 and 137,923.77 is: 206,885.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,600.49 : 459,900.90 = 137,923.77 : x
  2. Step 2: Convert to fraction form
    306,600.49/459,900.90 = 137,923.77/x
  3. Step 3: Cross multiply
    306,600.49x = 459,900.90 × 137,923.77
  4. Step 4: Simplify right side
    306,600.49x = 63,431,265,954.39
  5. Step 5: Solve for x
    x = 63,431,265,954.39/306,600.49
  6. Step 6: Final answer
    x = 206,885.73

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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.