Finding the Fourth Proportional to 239,783.76, 330,843.60 and 153,703.44
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Solution
The fourth proportional to 239,783.76, 330,843.60 and 153,703.44 is: 212,073.58
Step by Step Solution
- Step 1: Write the proportion equation
239,783.76 : 330,843.60 = 153,703.44 : x - Step 2: Convert to fraction form
239,783.76/330,843.60 = 153,703.44/x - Step 3: Cross multiply
239,783.76x = 330,843.60 × 153,703.44 - Step 4: Simplify right side
239,783.76x = 50,851,799,421.98 - Step 5: Solve for x
x = 50,851,799,421.98/239,783.76 - Step 6: Final answer
x = 212,073.58
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1.5x scale
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.