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Finding the Fourth Proportional to 304,592.75, 420,279.67 and 197,147.87

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Solution

The fourth proportional to 304,592.75, 420,279.67 and 197,147.87 is: 272,026.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,592.75 : 420,279.67 = 197,147.87 : x
  2. Step 2: Convert to fraction form
    304,592.75/420,279.67 = 197,147.87/x
  3. Step 3: Cross multiply
    304,592.75x = 420,279.67 × 197,147.87
  4. Step 4: Simplify right side
    304,592.75x = 82,857,241,744.80
  5. Step 5: Solve for x
    x = 82,857,241,744.80/304,592.75
  6. Step 6: Final answer
    x = 272,026.31

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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.