Finding the Fourth Proportional to 197,328.65, 272,249.15 and 120,768.05
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Solution
The fourth proportional to 197,328.65, 272,249.15 and 120,768.05 is: 166,620.50
Step by Step Solution
- Step 1: Write the proportion equation
197,328.65 : 272,249.15 = 120,768.05 : x - Step 2: Convert to fraction form
197,328.65/272,249.15 = 120,768.05/x - Step 3: Cross multiply
197,328.65x = 272,249.15 × 120,768.05 - Step 4: Simplify right side
197,328.65x = 32,878,996,994.57 - Step 5: Solve for x
x = 32,878,996,994.57/197,328.65 - Step 6: Final answer
x = 166,620.50
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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.