Finding the Fourth Proportional to 212,069.95, 317,984.84 and 69,876.68
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Solution
The fourth proportional to 212,069.95, 317,984.84 and 69,876.68 is: 104,775.45
Step by Step Solution
- Step 1: Write the proportion equation
212,069.95 : 317,984.84 = 69,876.68 : x - Step 2: Convert to fraction form
212,069.95/317,984.84 = 69,876.68/x - Step 3: Cross multiply
212,069.95x = 317,984.84 × 69,876.68 - Step 4: Simplify right side
212,069.95x = 22,219,723,232.26 - Step 5: Solve for x
x = 22,219,723,232.26/212,069.95 - Step 6: Final answer
x = 104,775.45
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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.