Finding the Fourth Proportional to 207,382.23, 286,034.68 and 156,397.11
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Solution
The fourth proportional to 207,382.23, 286,034.68 and 156,397.11 is: 215,712.78
Step by Step Solution
- Step 1: Write the proportion equation
207,382.23 : 286,034.68 = 156,397.11 : x - Step 2: Convert to fraction form
207,382.23/286,034.68 = 156,397.11/x - Step 3: Cross multiply
207,382.23x = 286,034.68 × 156,397.11 - Step 4: Simplify right side
207,382.23x = 44,734,997,276.74 - Step 5: Solve for x
x = 44,734,997,276.74/207,382.23 - Step 6: Final answer
x = 215,712.78
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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.