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Finding the Fourth Proportional to 304,968.88, 420,838.00 and 168,994.89

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Solution

The fourth proportional to 304,968.88, 420,838.00 and 168,994.89 is: 233,202.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,968.88 : 420,838.00 = 168,994.89 : x
  2. Step 2: Convert to fraction form
    304,968.88/420,838.00 = 168,994.89/x
  3. Step 3: Cross multiply
    304,968.88x = 420,838.00 × 168,994.89
  4. Step 4: Simplify right side
    304,968.88x = 71,119,471,095.33
  5. Step 5: Solve for x
    x = 71,119,471,095.33/304,968.88
  6. Step 6: Final answer
    x = 233,202.39

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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.