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Finding the Fourth Proportional to 291,375.03, 436,240.82 and 154,287.49

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Solution

The fourth proportional to 291,375.03, 436,240.82 and 154,287.49 is: 230,996.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,375.03 : 436,240.82 = 154,287.49 : x
  2. Step 2: Convert to fraction form
    291,375.03/436,240.82 = 154,287.49/x
  3. Step 3: Cross multiply
    291,375.03x = 436,240.82 × 154,287.49
  4. Step 4: Simplify right side
    291,375.03x = 67,306,501,153.34
  5. Step 5: Solve for x
    x = 67,306,501,153.34/291,375.03
  6. Step 6: Final answer
    x = 230,996.12

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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.