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Finding the Fourth Proportional to 290,053.44, 400,288.32 and 181,223.28

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Solution

The fourth proportional to 290,053.44, 400,288.32 and 181,223.28 is: 250,097.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,053.44 : 400,288.32 = 181,223.28 : x
  2. Step 2: Convert to fraction form
    290,053.44/400,288.32 = 181,223.28/x
  3. Step 3: Cross multiply
    290,053.44x = 400,288.32 × 181,223.28
  4. Step 4: Simplify right side
    290,053.44x = 72,541,562,296.09
  5. Step 5: Solve for x
    x = 72,541,562,296.09/290,053.44
  6. Step 6: Final answer
    x = 250,097.23

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1.5x scale

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.