Finding the Fourth Proportional to 212,214.36, 318,367.68 and 70,065.84
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Solution
The fourth proportional to 212,214.36, 318,367.68 and 70,065.84 is: 105,113.99
Step by Step Solution
- Step 1: Write the proportion equation
212,214.36 : 318,367.68 = 70,065.84 : x - Step 2: Convert to fraction form
212,214.36/318,367.68 = 70,065.84/x - Step 3: Cross multiply
212,214.36x = 318,367.68 × 70,065.84 - Step 4: Simplify right side
212,214.36x = 22,306,698,928.05 - Step 5: Solve for x
x = 22,306,698,928.05/212,214.36 - Step 6: Final answer
x = 105,113.99
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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.