Finding the Fourth Proportional to 221,833.84, 306,132.96 and 121,231.84
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Solution
The fourth proportional to 221,833.84, 306,132.96 and 121,231.84 is: 167,301.17
Step by Step Solution
- Step 1: Write the proportion equation
221,833.84 : 306,132.96 = 121,231.84 : x - Step 2: Convert to fraction form
221,833.84/306,132.96 = 121,231.84/x - Step 3: Cross multiply
221,833.84x = 306,132.96 × 121,231.84 - Step 4: Simplify right side
221,833.84x = 37,113,062,025.45 - Step 5: Solve for x
x = 37,113,062,025.45/221,833.84 - Step 6: Final answer
x = 167,301.17
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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.