Finding the Fourth Proportional to 203,986.81, 305,970.87 and 70,877.49
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Solution
The fourth proportional to 203,986.81, 305,970.87 and 70,877.49 is: 106,312.99
Step by Step Solution
- Step 1: Write the proportion equation
203,986.81 : 305,970.87 = 70,877.49 : x - Step 2: Convert to fraction form
203,986.81/305,970.87 = 70,877.49/x - Step 3: Cross multiply
203,986.81x = 305,970.87 × 70,877.49 - Step 4: Simplify right side
203,986.81x = 21,686,447,278.72 - Step 5: Solve for x
x = 21,686,447,278.72/203,986.81 - Step 6: Final answer
x = 106,312.99
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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.