Finding the Fourth Proportional to 207,903.18, 286,906.80 and 112,409.88
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Solution
The fourth proportional to 207,903.18, 286,906.80 and 112,409.88 is: 155,125.86
Step by Step Solution
- Step 1: Write the proportion equation
207,903.18 : 286,906.80 = 112,409.88 : x - Step 2: Convert to fraction form
207,903.18/286,906.80 = 112,409.88/x - Step 3: Cross multiply
207,903.18x = 286,906.80 × 112,409.88 - Step 4: Simplify right side
207,903.18x = 32,251,158,959.18 - Step 5: Solve for x
x = 32,251,158,959.18/207,903.18 - Step 6: Final answer
x = 155,125.86
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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.