Finding the Fourth Proportional to 190,151.10, 285,226.65 and 115,355.70
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Solution
The fourth proportional to 190,151.10, 285,226.65 and 115,355.70 is: 173,033.55
Step by Step Solution
- Step 1: Write the proportion equation
190,151.10 : 285,226.65 = 115,355.70 : x - Step 2: Convert to fraction form
190,151.10/285,226.65 = 115,355.70/x - Step 3: Cross multiply
190,151.10x = 285,226.65 × 115,355.70 - Step 4: Simplify right side
190,151.10x = 32,902,519,869.41 - Step 5: Solve for x
x = 32,902,519,869.41/190,151.10 - Step 6: Final answer
x = 173,033.55
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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.