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Finding the Fourth Proportional to 290,879.65, 401,249.90 and 174,563.37

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Solution

The fourth proportional to 290,879.65, 401,249.90 and 174,563.37 is: 240,799.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,879.65 : 401,249.90 = 174,563.37 : x
  2. Step 2: Convert to fraction form
    290,879.65/401,249.90 = 174,563.37/x
  3. Step 3: Cross multiply
    290,879.65x = 401,249.90 × 174,563.37
  4. Step 4: Simplify right side
    290,879.65x = 70,043,534,756.16
  5. Step 5: Solve for x
    x = 70,043,534,756.16/290,879.65
  6. Step 6: Final answer
    x = 240,799.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.