Home / 290,074.23-400,308.89-169,223.65

Finding the Fourth Proportional to 290,074.23, 400,308.89 and 169,223.65

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Solution

The fourth proportional to 290,074.23, 400,308.89 and 169,223.65 is: 233,532.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,074.23 : 400,308.89 = 169,223.65 : x
  2. Step 2: Convert to fraction form
    290,074.23/400,308.89 = 169,223.65/x
  3. Step 3: Cross multiply
    290,074.23x = 400,308.89 × 169,223.65
  4. Step 4: Simplify right side
    290,074.23x = 67,741,729,646.36
  5. Step 5: Solve for x
    x = 67,741,729,646.36/290,074.23
  6. Step 6: Final answer
    x = 233,532.39

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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.