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Finding the Fourth Proportional to 280,907.33, 421,467.39 and 168,665.94

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Solution

The fourth proportional to 280,907.33, 421,467.39 and 168,665.94 is: 253,062.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,907.33 : 421,467.39 = 168,665.94 : x
  2. Step 2: Convert to fraction form
    280,907.33/421,467.39 = 168,665.94/x
  3. Step 3: Cross multiply
    280,907.33x = 421,467.39 × 168,665.94
  4. Step 4: Simplify right side
    280,907.33x = 71,087,193,513.70
  5. Step 5: Solve for x
    x = 71,087,193,513.70/280,907.33
  6. Step 6: Final answer
    x = 253,062.80

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1.5x scale

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.