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Finding the Fourth Proportional to 281,336.96, 421,545.36 and 270,839.36

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Solution

The fourth proportional to 281,336.96, 421,545.36 and 270,839.36 is: 405,816.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,336.96 : 421,545.36 = 270,839.36 : x
  2. Step 2: Convert to fraction form
    281,336.96/421,545.36 = 270,839.36/x
  3. Step 3: Cross multiply
    281,336.96x = 421,545.36 × 270,839.36
  4. Step 4: Simplify right side
    281,336.96x = 114,171,075,513.37
  5. Step 5: Solve for x
    x = 114,171,075,513.37/281,336.96
  6. Step 6: Final answer
    x = 405,816.13

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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.