Finding the Fourth Proportional to 278,544.50, 384,391.80 and 151,220.09
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Solution
The fourth proportional to 278,544.50, 384,391.80 and 151,220.09 is: 208,683.94
Step by Step Solution
- Step 1: Write the proportion equation
278,544.50 : 384,391.80 = 151,220.09 : x - Step 2: Convert to fraction form
278,544.50/384,391.80 = 151,220.09/x - Step 3: Cross multiply
278,544.50x = 384,391.80 × 151,220.09 - Step 4: Simplify right side
278,544.50x = 58,127,762,591.26 - Step 5: Solve for x
x = 58,127,762,591.26/278,544.50 - Step 6: Final answer
x = 208,683.94
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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.