Finding the Fourth Proportional to 341,781.44, 512,670.11 and 139,376.75
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Solution
The fourth proportional to 341,781.44, 512,670.11 and 139,376.75 is: 209,064.28
Step by Step Solution
- Step 1: Write the proportion equation
341,781.44 : 512,670.11 = 139,376.75 : x - Step 2: Convert to fraction form
341,781.44/512,670.11 = 139,376.75/x - Step 3: Cross multiply
341,781.44x = 512,670.11 × 139,376.75 - Step 4: Simplify right side
341,781.44x = 71,454,290,493.71 - Step 5: Solve for x
x = 71,454,290,493.71/341,781.44 - Step 6: Final answer
x = 209,064.28
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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.