Finding the Fourth Proportional to 230,643.44, 318,280.68 and 135,213.68
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Solution
The fourth proportional to 230,643.44, 318,280.68 and 135,213.68 is: 186,590.62
Step by Step Solution
- Step 1: Write the proportion equation
230,643.44 : 318,280.68 = 135,213.68 : x - Step 2: Convert to fraction form
230,643.44/318,280.68 = 135,213.68/x - Step 3: Cross multiply
230,643.44x = 318,280.68 × 135,213.68 - Step 4: Simplify right side
230,643.44x = 43,035,902,015.70 - Step 5: Solve for x
x = 43,035,902,015.70/230,643.44 - Step 6: Final answer
x = 186,590.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.