Finding the Fourth Proportional to 256,737.36, 384,957.81 and 79,196.70
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Solution
The fourth proportional to 256,737.36, 384,957.81 and 79,196.70 is: 118,749.32
Step by Step Solution
- Step 1: Write the proportion equation
256,737.36 : 384,957.81 = 79,196.70 : x - Step 2: Convert to fraction form
256,737.36/384,957.81 = 79,196.70/x - Step 3: Cross multiply
256,737.36x = 384,957.81 × 79,196.70 - Step 4: Simplify right side
256,737.36x = 30,487,388,191.23 - Step 5: Solve for x
x = 30,487,388,191.23/256,737.36 - Step 6: Final answer
x = 118,749.32
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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.