Finding the Fourth Proportional to 151,615.44, 209,225.70 and 83,630.97
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Solution
The fourth proportional to 151,615.44, 209,225.70 and 83,630.97 is: 115,408.75
Step by Step Solution
- Step 1: Write the proportion equation
151,615.44 : 209,225.70 = 83,630.97 : x - Step 2: Convert to fraction form
151,615.44/209,225.70 = 83,630.97/x - Step 3: Cross multiply
151,615.44x = 209,225.70 × 83,630.97 - Step 4: Simplify right side
151,615.44x = 17,497,748,239.93 - Step 5: Solve for x
x = 17,497,748,239.93/151,615.44 - Step 6: Final answer
x = 115,408.75
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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.