Finding the Fourth Proportional to 290,698.14, 401,273.05 and 169,878.70
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Solution
The fourth proportional to 290,698.14, 401,273.05 and 169,878.70 is: 234,496.66
Step by Step Solution
- Step 1: Write the proportion equation
290,698.14 : 401,273.05 = 169,878.70 : x - Step 2: Convert to fraction form
290,698.14/401,273.05 = 169,878.70/x - Step 3: Cross multiply
290,698.14x = 401,273.05 × 169,878.70 - Step 4: Simplify right side
290,698.14x = 68,167,743,288.20 - Step 5: Solve for x
x = 68,167,743,288.20/290,698.14 - Step 6: Final answer
x = 234,496.66
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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.