Finding the Fourth Proportional to 196,958.92, 272,029.62 and 143,483.08
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Solution
The fourth proportional to 196,958.92, 272,029.62 and 143,483.08 is: 198,171.52
Step by Step Solution
- Step 1: Write the proportion equation
196,958.92 : 272,029.62 = 143,483.08 : x - Step 2: Convert to fraction form
196,958.92/272,029.62 = 143,483.08/x - Step 3: Cross multiply
196,958.92x = 272,029.62 × 143,483.08 - Step 4: Simplify right side
196,958.92x = 39,031,647,728.83 - Step 5: Solve for x
x = 39,031,647,728.83/196,958.92 - Step 6: Final answer
x = 198,171.52
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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.