Finding the Fourth Proportional to 161,761.62, 243,515.91 and 145,486.17
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Solution
The fourth proportional to 161,761.62, 243,515.91 and 145,486.17 is: 219,014.85
Step by Step Solution
- Step 1: Write the proportion equation
161,761.62 : 243,515.91 = 145,486.17 : x - Step 2: Convert to fraction form
161,761.62/243,515.91 = 145,486.17/x - Step 3: Cross multiply
161,761.62x = 243,515.91 × 145,486.17 - Step 4: Simplify right side
161,761.62x = 35,428,197,079.96 - Step 5: Solve for x
x = 35,428,197,079.96/161,761.62 - Step 6: Final answer
x = 219,014.85
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.