Finding the Fourth Proportional to 268,412.07, 370,415.79 and 145,912.70
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Solution
The fourth proportional to 268,412.07, 370,415.79 and 145,912.70 is: 201,363.40
Step by Step Solution
- Step 1: Write the proportion equation
268,412.07 : 370,415.79 = 145,912.70 : x - Step 2: Convert to fraction form
268,412.07/370,415.79 = 145,912.70/x - Step 3: Cross multiply
268,412.07x = 370,415.79 × 145,912.70 - Step 4: Simplify right side
268,412.07x = 54,048,368,041.53 - Step 5: Solve for x
x = 54,048,368,041.53/268,412.07 - Step 6: Final answer
x = 201,363.40
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.