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Finding the Fourth Proportional to 252,467.35, 378,779.60 and 74,975.29

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Solution

The fourth proportional to 252,467.35, 378,779.60 and 74,975.29 is: 112,486.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,467.35 : 378,779.60 = 74,975.29 : x
  2. Step 2: Convert to fraction form
    252,467.35/378,779.60 = 74,975.29/x
  3. Step 3: Cross multiply
    252,467.35x = 378,779.60 × 74,975.29
  4. Step 4: Simplify right side
    252,467.35x = 28,399,110,356.08
  5. Step 5: Solve for x
    x = 28,399,110,356.08/252,467.35
  6. Step 6: Final answer
    x = 112,486.27

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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.