Finding the Fourth Proportional to 223,164.74, 307,967.41 and 121,190.18
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Solution
The fourth proportional to 223,164.74, 307,967.41 and 121,190.18 is: 167,242.49
Step by Step Solution
- Step 1: Write the proportion equation
223,164.74 : 307,967.41 = 121,190.18 : x - Step 2: Convert to fraction form
223,164.74/307,967.41 = 121,190.18/x - Step 3: Cross multiply
223,164.74x = 307,967.41 × 121,190.18 - Step 4: Simplify right side
223,164.74x = 37,322,625,852.03 - Step 5: Solve for x
x = 37,322,625,852.03/223,164.74 - Step 6: Final answer
x = 167,242.49
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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.