Finding the Fourth Proportional to 274,821.20, 412,231.80 and 97,326.80
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Solution
The fourth proportional to 274,821.20, 412,231.80 and 97,326.80 is: 145,990.20
Step by Step Solution
- Step 1: Write the proportion equation
274,821.20 : 412,231.80 = 97,326.80 : x - Step 2: Convert to fraction form
274,821.20/412,231.80 = 97,326.80/x - Step 3: Cross multiply
274,821.20x = 412,231.80 × 97,326.80 - Step 4: Simplify right side
274,821.20x = 40,121,201,952.24 - Step 5: Solve for x
x = 40,121,201,952.24/274,821.20 - Step 6: Final answer
x = 145,990.20
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1.5x scale
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.