Home / 290,288.36-400,575.82-162,939.35

Finding the Fourth Proportional to 290,288.36, 400,575.82 and 162,939.35

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Solution

The fourth proportional to 290,288.36, 400,575.82 and 162,939.35 is: 224,843.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,288.36 : 400,575.82 = 162,939.35 : x
  2. Step 2: Convert to fraction form
    290,288.36/400,575.82 = 162,939.35/x
  3. Step 3: Cross multiply
    290,288.36x = 400,575.82 × 162,939.35
  4. Step 4: Simplify right side
    290,288.36x = 65,269,563,133.96
  5. Step 5: Solve for x
    x = 65,269,563,133.96/290,288.36
  6. Step 6: Final answer
    x = 224,843.89

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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.