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Finding the Fourth Proportional to 431,986.83, 648,269.48 and 179,267.57

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Solution

The fourth proportional to 431,986.83, 648,269.48 and 179,267.57 is: 269,021.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,986.83 : 648,269.48 = 179,267.57 : x
  2. Step 2: Convert to fraction form
    431,986.83/648,269.48 = 179,267.57/x
  3. Step 3: Cross multiply
    431,986.83x = 648,269.48 × 179,267.57
  4. Step 4: Simplify right side
    431,986.83x = 116,213,690,247.08
  5. Step 5: Solve for x
    x = 116,213,690,247.08/431,986.83
  6. Step 6: Final answer
    x = 269,021.37

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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.