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Finding the Fourth Proportional to 339,089.60, 508,618.41 and 125,899.91

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Solution

The fourth proportional to 339,089.60, 508,618.41 and 125,899.91 is: 188,843.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,089.60 : 508,618.41 = 125,899.91 : x
  2. Step 2: Convert to fraction form
    339,089.60/508,618.41 = 125,899.91/x
  3. Step 3: Cross multiply
    339,089.60x = 508,618.41 × 125,899.91
  4. Step 4: Simplify right side
    339,089.60x = 64,035,009,500.25
  5. Step 5: Solve for x
    x = 64,035,009,500.25/339,089.60
  6. Step 6: Final answer
    x = 188,843.92

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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.