Home / 406,268.37-609,029.36-139,965.57

Finding the Fourth Proportional to 406,268.37, 609,029.36 and 139,965.57

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Solution

The fourth proportional to 406,268.37, 609,029.36 and 139,965.57 is: 209,819.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,268.37 : 609,029.36 = 139,965.57 : x
  2. Step 2: Convert to fraction form
    406,268.37/609,029.36 = 139,965.57/x
  3. Step 3: Cross multiply
    406,268.37x = 609,029.36 × 139,965.57
  4. Step 4: Simplify right side
    406,268.37x = 85,243,141,519.14
  5. Step 5: Solve for x
    x = 85,243,141,519.14/406,268.37
  6. Step 6: Final answer
    x = 209,819.78

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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.