Finding the Fourth Proportional to 194,439.84, 291,690.36 and 68,118.72
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Solution
The fourth proportional to 194,439.84, 291,690.36 and 68,118.72 is: 102,188.80
Step by Step Solution
- Step 1: Write the proportion equation
194,439.84 : 291,690.36 = 68,118.72 : x - Step 2: Convert to fraction form
194,439.84/291,690.36 = 68,118.72/x - Step 3: Cross multiply
194,439.84x = 291,690.36 × 68,118.72 - Step 4: Simplify right side
194,439.84x = 19,869,573,959.54 - Step 5: Solve for x
x = 19,869,573,959.54/194,439.84 - Step 6: Final answer
x = 102,188.80
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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.