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Finding the Fourth Proportional to 304,993.34, 420,890.82 and 169,047.73

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Solution

The fourth proportional to 304,993.34, 420,890.82 and 169,047.73 is: 233,285.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,993.34 : 420,890.82 = 169,047.73 : x
  2. Step 2: Convert to fraction form
    304,993.34/420,890.82 = 169,047.73/x
  3. Step 3: Cross multiply
    304,993.34x = 420,890.82 × 169,047.73
  4. Step 4: Simplify right side
    304,993.34x = 71,150,636,649.85
  5. Step 5: Solve for x
    x = 71,150,636,649.85/304,993.34
  6. Step 6: Final answer
    x = 233,285.87

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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.