Finding the Fourth Proportional to 223,122.60, 307,912.91 and 121,148.06
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Solution
The fourth proportional to 223,122.60, 307,912.91 and 121,148.06 is: 167,186.33
Step by Step Solution
- Step 1: Write the proportion equation
223,122.60 : 307,912.91 = 121,148.06 : x - Step 2: Convert to fraction form
223,122.60/307,912.91 = 121,148.06/x - Step 3: Cross multiply
223,122.60x = 307,912.91 × 121,148.06 - Step 4: Simplify right side
223,122.60x = 37,303,049,550.15 - Step 5: Solve for x
x = 37,303,049,550.15/223,122.60 - Step 6: Final answer
x = 167,186.33
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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.