Finding the Fourth Proportional to 145,509.21, 218,263.41 and 40,328.28
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Solution
The fourth proportional to 145,509.21, 218,263.41 and 40,328.28 is: 60,492.31
Step by Step Solution
- Step 1: Write the proportion equation
145,509.21 : 218,263.41 = 40,328.28 : x - Step 2: Convert to fraction form
145,509.21/218,263.41 = 40,328.28/x - Step 3: Cross multiply
145,509.21x = 218,263.41 × 40,328.28 - Step 4: Simplify right side
145,509.21x = 8,802,187,912.23 - Step 5: Solve for x
x = 8,802,187,912.23/145,509.21 - Step 6: Final answer
x = 60,492.31
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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.