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Finding the Fourth Proportional to 199,297.93, 298,989.51 and 72,937.75

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Solution

The fourth proportional to 199,297.93, 298,989.51 and 72,937.75 is: 109,422.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,297.93 : 298,989.51 = 72,937.75 : x
  2. Step 2: Convert to fraction form
    199,297.93/298,989.51 = 72,937.75/x
  3. Step 3: Cross multiply
    199,297.93x = 298,989.51 × 72,937.75
  4. Step 4: Simplify right side
    199,297.93x = 21,807,622,133.00
  5. Step 5: Solve for x
    x = 21,807,622,133.00/199,297.93
  6. Step 6: Final answer
    x = 109,422.22

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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.