Finding the Fourth Proportional to 221,968.16, 306,331.69 and 125,180.67
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Solution
The fourth proportional to 221,968.16, 306,331.69 and 125,180.67 is: 172,758.15
Step by Step Solution
- Step 1: Write the proportion equation
221,968.16 : 306,331.69 = 125,180.67 : x - Step 2: Convert to fraction form
221,968.16/306,331.69 = 125,180.67/x - Step 3: Cross multiply
221,968.16x = 306,331.69 × 125,180.67 - Step 4: Simplify right side
221,968.16x = 38,346,807,275.21 - Step 5: Solve for x
x = 38,346,807,275.21/221,968.16 - Step 6: Final answer
x = 172,758.15
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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.