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Finding the Fourth Proportional to 351,289.69, 526,874.59 and 126,605.41

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Solution

The fourth proportional to 351,289.69, 526,874.59 and 126,605.41 is: 189,886.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,289.69 : 526,874.59 = 126,605.41 : x
  2. Step 2: Convert to fraction form
    351,289.69/526,874.59 = 126,605.41/x
  3. Step 3: Cross multiply
    351,289.69x = 526,874.59 × 126,605.41
  4. Step 4: Simplify right side
    351,289.69x = 66,705,173,485.53
  5. Step 5: Solve for x
    x = 66,705,173,485.53/351,289.69
  6. Step 6: Final answer
    x = 189,886.51

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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.