Finding the Fourth Proportional to 223,968.48, 309,073.84 and 121,993.62
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Solution
The fourth proportional to 223,968.48, 309,073.84 and 121,993.62 is: 168,349.75
Step by Step Solution
- Step 1: Write the proportion equation
223,968.48 : 309,073.84 = 121,993.62 : x - Step 2: Convert to fraction form
223,968.48/309,073.84 = 121,993.62/x - Step 3: Cross multiply
223,968.48x = 309,073.84 × 121,993.62 - Step 4: Simplify right side
223,968.48x = 37,705,036,588.90 - Step 5: Solve for x
x = 37,705,036,588.90/223,968.48 - Step 6: Final answer
x = 168,349.75
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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.