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Finding the Fourth Proportional to 281,338.96, 421,548.36 and 270,841.36

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Solution

The fourth proportional to 281,338.96, 421,548.36 and 270,841.36 is: 405,819.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,338.96 : 421,548.36 = 270,841.36 : x
  2. Step 2: Convert to fraction form
    281,338.96/421,548.36 = 270,841.36/x
  3. Step 3: Cross multiply
    281,338.96x = 421,548.36 × 270,841.36
  4. Step 4: Simplify right side
    281,338.96x = 114,172,731,128.17
  5. Step 5: Solve for x
    x = 114,172,731,128.17/281,338.96
  6. Step 6: Final answer
    x = 405,819.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.