Finding the Fourth Proportional to 163,353.09, 225,256.37 and 129,307.17
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Solution
The fourth proportional to 163,353.09, 225,256.37 and 129,307.17 is: 178,308.61
Step by Step Solution
- Step 1: Write the proportion equation
163,353.09 : 225,256.37 = 129,307.17 : x - Step 2: Convert to fraction form
163,353.09/225,256.37 = 129,307.17/x - Step 3: Cross multiply
163,353.09x = 225,256.37 × 129,307.17 - Step 4: Simplify right side
163,353.09x = 29,127,263,082.64 - Step 5: Solve for x
x = 29,127,263,082.64/163,353.09 - Step 6: Final answer
x = 178,308.61
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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.