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Finding the Fourth Proportional to 304,436.67, 420,129.46 and 197,193.37

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Solution

The fourth proportional to 304,436.67, 420,129.46 and 197,193.37 is: 272,131.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,436.67 : 420,129.46 = 197,193.37 : x
  2. Step 2: Convert to fraction form
    304,436.67/420,129.46 = 197,193.37/x
  3. Step 3: Cross multiply
    304,436.67x = 420,129.46 × 197,193.37
  4. Step 4: Simplify right side
    304,436.67x = 82,846,741,953.03
  5. Step 5: Solve for x
    x = 82,846,741,953.03/304,436.67
  6. Step 6: Final answer
    x = 272,131.28

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1.5x scale

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.