Finding the Fourth Proportional to 207,823.76, 286,799.97 and 121,762.15
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Solution
The fourth proportional to 207,823.76, 286,799.97 and 121,762.15 is: 168,033.63
Step by Step Solution
- Step 1: Write the proportion equation
207,823.76 : 286,799.97 = 121,762.15 : x - Step 2: Convert to fraction form
207,823.76/286,799.97 = 121,762.15/x - Step 3: Cross multiply
207,823.76x = 286,799.97 × 121,762.15 - Step 4: Simplify right side
207,823.76x = 34,921,381,513.37 - Step 5: Solve for x
x = 34,921,381,513.37/207,823.76 - Step 6: Final answer
x = 168,033.63
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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.