Finding the Fourth Proportional to 212,163.12, 292,781.28 and 116,670.08
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Solution
The fourth proportional to 212,163.12, 292,781.28 and 116,670.08 is: 161,002.61
Step by Step Solution
- Step 1: Write the proportion equation
212,163.12 : 292,781.28 = 116,670.08 : x - Step 2: Convert to fraction form
212,163.12/292,781.28 = 116,670.08/x - Step 3: Cross multiply
212,163.12x = 292,781.28 × 116,670.08 - Step 4: Simplify right side
212,163.12x = 34,158,815,360.10 - Step 5: Solve for x
x = 34,158,815,360.10/212,163.12 - Step 6: Final answer
x = 161,002.61
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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.