Finding the Fourth Proportional to 445,839.84, 668,244.74 and 205,451.10
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Solution
The fourth proportional to 445,839.84, 668,244.74 and 205,451.10 is: 307,939.32
Step by Step Solution
- Step 1: Write the proportion equation
445,839.84 : 668,244.74 = 205,451.10 : x - Step 2: Convert to fraction form
445,839.84/668,244.74 = 205,451.10/x - Step 3: Cross multiply
445,839.84x = 668,244.74 × 205,451.10 - Step 4: Simplify right side
445,839.84x = 137,291,616,902.21 - Step 5: Solve for x
x = 137,291,616,902.21/445,839.84 - Step 6: Final answer
x = 307,939.32
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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.