Home / 290,174.40-400,434.48-162,891.36

Finding the Fourth Proportional to 290,174.40, 400,434.48 and 162,891.36

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Solution

The fourth proportional to 290,174.40, 400,434.48 and 162,891.36 is: 224,786.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,174.40 : 400,434.48 = 162,891.36 : x
  2. Step 2: Convert to fraction form
    290,174.40/400,434.48 = 162,891.36/x
  3. Step 3: Cross multiply
    290,174.40x = 400,434.48 × 162,891.36
  4. Step 4: Simplify right side
    290,174.40x = 65,227,317,038.09
  5. Step 5: Solve for x
    x = 65,227,317,038.09/290,174.40
  6. Step 6: Final answer
    x = 224,786.60

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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.