Finding the Fourth Proportional to 221,832.84, 306,131.58 and 121,230.84
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Solution
The fourth proportional to 221,832.84, 306,131.58 and 121,230.84 is: 167,299.79
Step by Step Solution
- Step 1: Write the proportion equation
221,832.84 : 306,131.58 = 121,230.84 : x - Step 2: Convert to fraction form
221,832.84/306,131.58 = 121,230.84/x - Step 3: Cross multiply
221,832.84x = 306,131.58 × 121,230.84 - Step 4: Simplify right side
221,832.84x = 37,112,588,593.93 - Step 5: Solve for x
x = 37,112,588,593.93/221,832.84 - Step 6: Final answer
x = 167,299.79
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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.