Finding the Fourth Proportional to 249,979.82, 344,971.93 and 141,107.08
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Solution
The fourth proportional to 249,979.82, 344,971.93 and 141,107.08 is: 194,727.64
Step by Step Solution
- Step 1: Write the proportion equation
249,979.82 : 344,971.93 = 141,107.08 : x - Step 2: Convert to fraction form
249,979.82/344,971.93 = 141,107.08/x - Step 3: Cross multiply
249,979.82x = 344,971.93 × 141,107.08 - Step 4: Simplify right side
249,979.82x = 48,677,981,143.37 - Step 5: Solve for x
x = 48,677,981,143.37/249,979.82 - Step 6: Final answer
x = 194,727.64
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1.5x scale
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.