Finding the Fourth Proportional to 212,385.24, 318,774.96 and 107,278.02
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Solution
The fourth proportional to 212,385.24, 318,774.96 and 107,278.02 is: 161,016.59
Step by Step Solution
- Step 1: Write the proportion equation
212,385.24 : 318,774.96 = 107,278.02 : x - Step 2: Convert to fraction form
212,385.24/318,774.96 = 107,278.02/x - Step 3: Cross multiply
212,385.24x = 318,774.96 × 107,278.02 - Step 4: Simplify right side
212,385.24x = 34,197,546,534.38 - Step 5: Solve for x
x = 34,197,546,534.38/212,385.24 - Step 6: Final answer
x = 161,016.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.