Finding the Fourth Proportional to 207,838.19, 286,818.02 and 112,344.66
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Solution
The fourth proportional to 207,838.19, 286,818.02 and 112,344.66 is: 155,036.34
Step by Step Solution
- Step 1: Write the proportion equation
207,838.19 : 286,818.02 = 112,344.66 : x - Step 2: Convert to fraction form
207,838.19/286,818.02 = 112,344.66/x - Step 3: Cross multiply
207,838.19x = 286,818.02 × 112,344.66 - Step 4: Simplify right side
207,838.19x = 32,222,472,377.05 - Step 5: Solve for x
x = 32,222,472,377.05/207,838.19 - Step 6: Final answer
x = 155,036.34
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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.