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Finding the Fourth Proportional to 351,408.32, 485,165.04 and 270,684.08

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Solution

The fourth proportional to 351,408.32, 485,165.04 and 270,684.08 is: 373,714.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,408.32 : 485,165.04 = 270,684.08 : x
  2. Step 2: Convert to fraction form
    351,408.32/485,165.04 = 270,684.08/x
  3. Step 3: Cross multiply
    351,408.32x = 485,165.04 × 270,684.08
  4. Step 4: Simplify right side
    351,408.32x = 131,326,452,500.56
  5. Step 5: Solve for x
    x = 131,326,452,500.56/351,408.32
  6. Step 6: Final answer
    x = 373,714.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.