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Finding the Fourth Proportional to 340,919.80, 511,379.52 and 104,262.52

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Solution

The fourth proportional to 340,919.80, 511,379.52 and 104,262.52 is: 156,393.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,919.80 : 511,379.52 = 104,262.52 : x
  2. Step 2: Convert to fraction form
    340,919.80/511,379.52 = 104,262.52/x
  3. Step 3: Cross multiply
    340,919.80x = 511,379.52 × 104,262.52
  4. Step 4: Simplify right side
    340,919.80x = 53,317,717,431.59
  5. Step 5: Solve for x
    x = 53,317,717,431.59/340,919.80
  6. Step 6: Final answer
    x = 156,393.72

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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.