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Finding the Fourth Proportional to 478,158.31, 659,858.46 and 263,297.86

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Solution

The fourth proportional to 478,158.31, 659,858.46 and 263,297.86 is: 363,351.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,158.31 : 659,858.46 = 263,297.86 : x
  2. Step 2: Convert to fraction form
    478,158.31/659,858.46 = 263,297.86/x
  3. Step 3: Cross multiply
    478,158.31x = 659,858.46 × 263,297.86
  4. Step 4: Simplify right side
    478,158.31x = 173,739,318,771.25
  5. Step 5: Solve for x
    x = 173,739,318,771.25/478,158.31
  6. Step 6: Final answer
    x = 363,351.04

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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.