Finding the Fourth Proportional to 191,309.62, 286,701.92 and 121,063.18
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Solution
The fourth proportional to 191,309.62, 286,701.92 and 121,063.18 is: 181,428.65
Step by Step Solution
- Step 1: Write the proportion equation
191,309.62 : 286,701.92 = 121,063.18 : x - Step 2: Convert to fraction form
191,309.62/286,701.92 = 121,063.18/x - Step 3: Cross multiply
191,309.62x = 286,701.92 × 121,063.18 - Step 4: Simplify right side
191,309.62x = 34,709,046,147.31 - Step 5: Solve for x
x = 34,709,046,147.31/191,309.62 - Step 6: Final answer
x = 181,428.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.