Finding the Fourth Proportional to 197,205.80, 295,646.70 and 84,972.20
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Solution
The fourth proportional to 197,205.80, 295,646.70 and 84,972.20 is: 127,388.50
Step by Step Solution
- Step 1: Write the proportion equation
197,205.80 : 295,646.70 = 84,972.20 : x - Step 2: Convert to fraction form
197,205.80/295,646.70 = 84,972.20/x - Step 3: Cross multiply
197,205.80x = 295,646.70 × 84,972.20 - Step 4: Simplify right side
197,205.80x = 25,121,750,521.74 - Step 5: Solve for x
x = 25,121,750,521.74/197,205.80 - Step 6: Final answer
x = 127,388.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.