Finding the Fourth Proportional to 207,745.47, 286,688.57 and 112,252.14
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Solution
The fourth proportional to 207,745.47, 286,688.57 and 112,252.14 is: 154,907.85
Step by Step Solution
- Step 1: Write the proportion equation
207,745.47 : 286,688.57 = 112,252.14 : x - Step 2: Convert to fraction form
207,745.47/286,688.57 = 112,252.14/x - Step 3: Cross multiply
207,745.47x = 286,688.57 × 112,252.14 - Step 4: Simplify right side
207,745.47x = 32,181,404,934.78 - Step 5: Solve for x
x = 32,181,404,934.78/207,745.47 - Step 6: Final answer
x = 154,907.85
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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.