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Finding the Fourth Proportional to 304,801.39, 420,629.30 and 168,837.42

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Solution

The fourth proportional to 304,801.39, 420,629.30 and 168,837.42 is: 232,997.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,801.39 : 420,629.30 = 168,837.42 : x
  2. Step 2: Convert to fraction form
    304,801.39/420,629.30 = 168,837.42/x
  3. Step 3: Cross multiply
    304,801.39x = 420,629.30 × 168,837.42
  4. Step 4: Simplify right side
    304,801.39x = 71,017,965,788.41
  5. Step 5: Solve for x
    x = 71,017,965,788.41/304,801.39
  6. Step 6: Final answer
    x = 232,997.51

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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.