Finding the Fourth Proportional to 212,494.08, 318,773.76 and 72,219.84
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Solution
The fourth proportional to 212,494.08, 318,773.76 and 72,219.84 is: 108,340.85
Step by Step Solution
- Step 1: Write the proportion equation
212,494.08 : 318,773.76 = 72,219.84 : x - Step 2: Convert to fraction form
212,494.08/318,773.76 = 72,219.84/x - Step 3: Cross multiply
212,494.08x = 318,773.76 × 72,219.84 - Step 4: Simplify right side
212,494.08x = 23,021,789,943.40 - Step 5: Solve for x
x = 23,021,789,943.40/212,494.08 - Step 6: Final answer
x = 108,340.85
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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.