Finding the Fourth Proportional to 457,706.25, 686,559.51 and 142,163.19
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Solution
The fourth proportional to 457,706.25, 686,559.51 and 142,163.19 is: 213,244.83
Step by Step Solution
- Step 1: Write the proportion equation
457,706.25 : 686,559.51 = 142,163.19 : x - Step 2: Convert to fraction form
457,706.25/686,559.51 = 142,163.19/x - Step 3: Cross multiply
457,706.25x = 686,559.51 × 142,163.19 - Step 4: Simplify right side
457,706.25x = 97,603,490,066.44 - Step 5: Solve for x
x = 97,603,490,066.44/457,706.25 - Step 6: Final answer
x = 213,244.83
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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.