Finding the Fourth Proportional to 197,718.64, 272,873.82 and 112,850.08
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Solution
The fourth proportional to 197,718.64, 272,873.82 and 112,850.08 is: 155,745.72
Step by Step Solution
- Step 1: Write the proportion equation
197,718.64 : 272,873.82 = 112,850.08 : x - Step 2: Convert to fraction form
197,718.64/272,873.82 = 112,850.08/x - Step 3: Cross multiply
197,718.64x = 272,873.82 × 112,850.08 - Step 4: Simplify right side
197,718.64x = 30,793,832,416.91 - Step 5: Solve for x
x = 30,793,832,416.91/197,718.64 - Step 6: Final answer
x = 155,745.72
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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.