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Finding the Fourth Proportional to 285,418.43, 428,037.01 and 93,249.07

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Solution

The fourth proportional to 285,418.43, 428,037.01 and 93,249.07 is: 139,844.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,418.43 : 428,037.01 = 93,249.07 : x
  2. Step 2: Convert to fraction form
    285,418.43/428,037.01 = 93,249.07/x
  3. Step 3: Cross multiply
    285,418.43x = 428,037.01 × 93,249.07
  4. Step 4: Simplify right side
    285,418.43x = 39,914,054,212.57
  5. Step 5: Solve for x
    x = 39,914,054,212.57/285,418.43
  6. Step 6: Final answer
    x = 139,844.00

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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.