Home / 290,514.38-435,796.65-80,152.29

Finding the Fourth Proportional to 290,514.38, 435,796.65 and 80,152.29

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Solution

The fourth proportional to 290,514.38, 435,796.65 and 80,152.29 is: 120,235.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,514.38 : 435,796.65 = 80,152.29 : x
  2. Step 2: Convert to fraction form
    290,514.38/435,796.65 = 80,152.29/x
  3. Step 3: Cross multiply
    290,514.38x = 435,796.65 × 80,152.29
  4. Step 4: Simplify right side
    290,514.38x = 34,930,099,471.83
  5. Step 5: Solve for x
    x = 34,930,099,471.83/290,514.38
  6. Step 6: Final answer
    x = 120,235.36

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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.