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Finding the Fourth Proportional to 270,436, 405,655.60 and 73,444

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Solution

The fourth proportional to 270,436, 405,655.60 and 73,444 is: 110,166.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,436 : 405,655.60 = 73,444 : x
  2. Step 2: Convert to fraction form
    270,436/405,655.60 = 73,444/x
  3. Step 3: Cross multiply
    270,436x = 405,655.60 × 73,444
  4. Step 4: Simplify right side
    270,436x = 29,792,969,886.40
  5. Step 5: Solve for x
    x = 29,792,969,886.40/270,436
  6. Step 6: Final answer
    x = 110,166.43

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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.