Finding the Fourth Proportional to 189,177.30, 260,916.93 and 121,200.54
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Solution
The fourth proportional to 189,177.30, 260,916.93 and 121,200.54 is: 167,162.09
Step by Step Solution
- Step 1: Write the proportion equation
189,177.30 : 260,916.93 = 121,200.54 : x - Step 2: Convert to fraction form
189,177.30/260,916.93 = 121,200.54/x - Step 3: Cross multiply
189,177.30x = 260,916.93 × 121,200.54 - Step 4: Simplify right side
189,177.30x = 31,623,272,811.14 - Step 5: Solve for x
x = 31,623,272,811.14/189,177.30 - Step 6: Final answer
x = 167,162.09
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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.