Finding the Fourth Proportional to 145,415.20, 218,122.80 and 62,471.20
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Solution
The fourth proportional to 145,415.20, 218,122.80 and 62,471.20 is: 93,706.80
Step by Step Solution
- Step 1: Write the proportion equation
145,415.20 : 218,122.80 = 62,471.20 : x - Step 2: Convert to fraction form
145,415.20/218,122.80 = 62,471.20/x - Step 3: Cross multiply
145,415.20x = 218,122.80 × 62,471.20 - Step 4: Simplify right side
145,415.20x = 13,626,393,063.36 - Step 5: Solve for x
x = 13,626,393,063.36/145,415.20 - Step 6: Final answer
x = 93,706.80
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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.