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Finding the Fourth Proportional to 304,579.42, 420,314.56 and 168,610.57

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Solution

The fourth proportional to 304,579.42, 420,314.56 and 168,610.57 is: 232,679.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,579.42 : 420,314.56 = 168,610.57 : x
  2. Step 2: Convert to fraction form
    304,579.42/420,314.56 = 168,610.57/x
  3. Step 3: Cross multiply
    304,579.42x = 420,314.56 × 168,610.57
  4. Step 4: Simplify right side
    304,579.42x = 70,869,477,540.90
  5. Step 5: Solve for x
    x = 70,869,477,540.90/304,579.42
  6. Step 6: Final answer
    x = 232,679.80

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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.