Finding the Fourth Proportional to 299,741.40, 449,612.10 and 297,991.80
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Solution
The fourth proportional to 299,741.40, 449,612.10 and 297,991.80 is: 446,987.70
Step by Step Solution
- Step 1: Write the proportion equation
299,741.40 : 449,612.10 = 297,991.80 : x - Step 2: Convert to fraction form
299,741.40/449,612.10 = 297,991.80/x - Step 3: Cross multiply
299,741.40x = 449,612.10 × 297,991.80 - Step 4: Simplify right side
299,741.40x = 133,980,718,980.78 - Step 5: Solve for x
x = 133,980,718,980.78/299,741.40 - Step 6: Final answer
x = 446,987.70
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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.