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Finding the Fourth Proportional to 340,785.40, 511,202.40 and 104,127.70

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Solution

The fourth proportional to 340,785.40, 511,202.40 and 104,127.70 is: 156,198.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,785.40 : 511,202.40 = 104,127.70 : x
  2. Step 2: Convert to fraction form
    340,785.40/511,202.40 = 104,127.70/x
  3. Step 3: Cross multiply
    340,785.40x = 511,202.40 × 104,127.70
  4. Step 4: Simplify right side
    340,785.40x = 53,230,330,146.48
  5. Step 5: Solve for x
    x = 53,230,330,146.48/340,785.40
  6. Step 6: Final answer
    x = 156,198.97

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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.