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Finding the Fourth Proportional to 340,944.80, 511,455.60 and 104,285.60

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Solution

The fourth proportional to 340,944.80, 511,455.60 and 104,285.60 is: 156,440.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,944.80 : 511,455.60 = 104,285.60 : x
  2. Step 2: Convert to fraction form
    340,944.80/511,455.60 = 104,285.60/x
  3. Step 3: Cross multiply
    340,944.80x = 511,455.60 × 104,285.60
  4. Step 4: Simplify right side
    340,944.80x = 53,337,454,119.36
  5. Step 5: Solve for x
    x = 53,337,454,119.36/340,944.80
  6. Step 6: Final answer
    x = 156,440.15

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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.