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Finding the Fourth Proportional to 275,809.04, 412,897.08 and 170,288.72

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Solution

The fourth proportional to 275,809.04, 412,897.08 and 170,288.72 is: 254,928.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,809.04 : 412,897.08 = 170,288.72 : x
  2. Step 2: Convert to fraction form
    275,809.04/412,897.08 = 170,288.72/x
  3. Step 3: Cross multiply
    275,809.04x = 412,897.08 × 170,288.72
  4. Step 4: Simplify right side
    275,809.04x = 70,311,715,244.94
  5. Step 5: Solve for x
    x = 70,311,715,244.94/275,809.04
  6. Step 6: Final answer
    x = 254,928.97

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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.