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Finding the Fourth Proportional to 371,100.63, 556,661.32 and 131,180.61

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Solution

The fourth proportional to 371,100.63, 556,661.32 and 131,180.61 is: 196,774.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,100.63 : 556,661.32 = 131,180.61 : x
  2. Step 2: Convert to fraction form
    371,100.63/556,661.32 = 131,180.61/x
  3. Step 3: Cross multiply
    371,100.63x = 556,661.32 × 131,180.61
  4. Step 4: Simplify right side
    371,100.63x = 73,023,171,521.01
  5. Step 5: Solve for x
    x = 73,023,171,521.01/371,100.63
  6. Step 6: Final answer
    x = 196,774.58

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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.