Finding the Fourth Proportional to 212,511.60, 318,809.46 and 60,709.99
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Solution
The fourth proportional to 212,511.60, 318,809.46 and 60,709.99 is: 91,076.99
Step by Step Solution
- Step 1: Write the proportion equation
212,511.60 : 318,809.46 = 60,709.99 : x - Step 2: Convert to fraction form
212,511.60/318,809.46 = 60,709.99/x - Step 3: Cross multiply
212,511.60x = 318,809.46 × 60,709.99 - Step 4: Simplify right side
212,511.60x = 19,354,917,534.46 - Step 5: Solve for x
x = 19,354,917,534.46/212,511.60 - Step 6: Final answer
x = 91,076.99
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1.5x scale
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.