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Finding the Fourth Proportional to 305,808.65, 422,026.69 and 169,845.14

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Solution

The fourth proportional to 305,808.65, 422,026.69 and 169,845.14 is: 234,392.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,808.65 : 422,026.69 = 169,845.14 : x
  2. Step 2: Convert to fraction form
    305,808.65/422,026.69 = 169,845.14/x
  3. Step 3: Cross multiply
    305,808.65x = 422,026.69 × 169,845.14
  4. Step 4: Simplify right side
    305,808.65x = 71,679,182,246.79
  5. Step 5: Solve for x
    x = 71,679,182,246.79/305,808.65
  6. Step 6: Final answer
    x = 234,392.27

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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.