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Finding the Fourth Proportional to 304,536, 420,249.15 and 168,575.88

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Solution

The fourth proportional to 304,536, 420,249.15 and 168,575.88 is: 232,628.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,536 : 420,249.15 = 168,575.88 : x
  2. Step 2: Convert to fraction form
    304,536/420,249.15 = 168,575.88/x
  3. Step 3: Cross multiply
    304,536x = 420,249.15 × 168,575.88
  4. Step 4: Simplify right side
    304,536x = 70,843,870,280.50
  5. Step 5: Solve for x
    x = 70,843,870,280.50/304,536
  6. Step 6: Final answer
    x = 232,628.89

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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.