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Finding the Fourth Proportional to 340,906.50, 511,433.57 and 130,544.45

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Solution

The fourth proportional to 340,906.50, 511,433.57 and 130,544.45 is: 195,844.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,906.50 : 511,433.57 = 130,544.45 : x
  2. Step 2: Convert to fraction form
    340,906.50/511,433.57 = 130,544.45/x
  3. Step 3: Cross multiply
    340,906.50x = 511,433.57 × 130,544.45
  4. Step 4: Simplify right side
    340,906.50x = 66,764,810,897.30
  5. Step 5: Solve for x
    x = 66,764,810,897.30/340,906.50
  6. Step 6: Final answer
    x = 195,844.93

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1.5x scale

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.