Finding the Fourth Proportional to 190,153.62, 285,239.64 and 156,812.80
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Solution
The fourth proportional to 190,153.62, 285,239.64 and 156,812.80 is: 235,226.80
Step by Step Solution
- Step 1: Write the proportion equation
190,153.62 : 285,239.64 = 156,812.80 : x - Step 2: Convert to fraction form
190,153.62/285,239.64 = 156,812.80/x - Step 3: Cross multiply
190,153.62x = 285,239.64 × 156,812.80 - Step 4: Simplify right side
190,153.62x = 44,729,226,619.39 - Step 5: Solve for x
x = 44,729,226,619.39/190,153.62 - Step 6: Final answer
x = 235,226.80
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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.