Finding the Fourth Proportional to 239,575.76, 330,571.08 and 148,955.60
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Solution
The fourth proportional to 239,575.76, 330,571.08 and 148,955.60 is: 205,531.70
Step by Step Solution
- Step 1: Write the proportion equation
239,575.76 : 330,571.08 = 148,955.60 : x - Step 2: Convert to fraction form
239,575.76/330,571.08 = 148,955.60/x - Step 3: Cross multiply
239,575.76x = 330,571.08 × 148,955.60 - Step 4: Simplify right side
239,575.76x = 49,240,413,564.05 - Step 5: Solve for x
x = 49,240,413,564.05/239,575.76 - Step 6: Final answer
x = 205,531.70
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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.