Finding the Fourth Proportional to 197,639.64, 272,740.50 and 106,993.44
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Solution
The fourth proportional to 197,639.64, 272,740.50 and 106,993.44 is: 147,649.75
Step by Step Solution
- Step 1: Write the proportion equation
197,639.64 : 272,740.50 = 106,993.44 : x - Step 2: Convert to fraction form
197,639.64/272,740.50 = 106,993.44/x - Step 3: Cross multiply
197,639.64x = 272,740.50 × 106,993.44 - Step 4: Simplify right side
197,639.64x = 29,181,444,322.32 - Step 5: Solve for x
x = 29,181,444,322.32/197,639.64 - Step 6: Final answer
x = 147,649.75
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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.