Finding the Fourth Proportional to 221,966.09, 306,314.39 and 121,364.09
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Solution
The fourth proportional to 221,966.09, 306,314.39 and 121,364.09 is: 167,483.09
Step by Step Solution
- Step 1: Write the proportion equation
221,966.09 : 306,314.39 = 121,364.09 : x - Step 2: Convert to fraction form
221,966.09/306,314.39 = 121,364.09/x - Step 3: Cross multiply
221,966.09x = 306,314.39 × 121,364.09 - Step 4: Simplify right side
221,966.09x = 37,175,566,589.43 - Step 5: Solve for x
x = 37,175,566,589.43/221,966.09 - Step 6: Final answer
x = 167,483.09
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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.