Home / 309,026.26-462,755.31-258,974.74

Finding the Fourth Proportional to 309,026.26, 462,755.31 and 258,974.74

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Solution

The fourth proportional to 309,026.26, 462,755.31 and 258,974.74 is: 387,805.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,026.26 : 462,755.31 = 258,974.74 : x
  2. Step 2: Convert to fraction form
    309,026.26/462,755.31 = 258,974.74/x
  3. Step 3: Cross multiply
    309,026.26x = 462,755.31 × 258,974.74
  4. Step 4: Simplify right side
    309,026.26x = 119,841,936,090.87
  5. Step 5: Solve for x
    x = 119,841,936,090.87/309,026.26
  6. Step 6: Final answer
    x = 387,805.02

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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.