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Finding the Fourth Proportional to 371,087.78, 556,630.23 and 134,375.09

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Solution

The fourth proportional to 371,087.78, 556,630.23 and 134,375.09 is: 201,562.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,087.78 : 556,630.23 = 134,375.09 : x
  2. Step 2: Convert to fraction form
    371,087.78/556,630.23 = 134,375.09/x
  3. Step 3: Cross multiply
    371,087.78x = 556,630.23 × 134,375.09
  4. Step 4: Simplify right side
    371,087.78x = 74,797,237,252.97
  5. Step 5: Solve for x
    x = 74,797,237,252.97/371,087.78
  6. Step 6: Final answer
    x = 201,562.11

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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.