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Finding the Fourth Proportional to 291,597.37, 436,408.16 and 179,348.78

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Solution

The fourth proportional to 291,597.37, 436,408.16 and 179,348.78 is: 268,415.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,597.37 : 436,408.16 = 179,348.78 : x
  2. Step 2: Convert to fraction form
    291,597.37/436,408.16 = 179,348.78/x
  3. Step 3: Cross multiply
    291,597.37x = 436,408.16 × 179,348.78
  4. Step 4: Simplify right side
    291,597.37x = 78,269,271,272.32
  5. Step 5: Solve for x
    x = 78,269,271,272.32/291,597.37
  6. Step 6: Final answer
    x = 268,415.56

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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.