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Finding the Fourth Proportional to 290,959.63, 436,439.41 and 80,597.57

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Solution

The fourth proportional to 290,959.63, 436,439.41 and 80,597.57 is: 120,896.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,959.63 : 436,439.41 = 80,597.57 : x
  2. Step 2: Convert to fraction form
    290,959.63/436,439.41 = 80,597.57/x
  3. Step 3: Cross multiply
    290,959.63x = 436,439.41 × 80,597.57
  4. Step 4: Simplify right side
    290,959.63x = 35,175,953,514.54
  5. Step 5: Solve for x
    x = 35,175,953,514.54/290,959.63
  6. Step 6: Final answer
    x = 120,896.34

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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.