Finding the Fourth Proportional to 239,762.96, 330,883.68 and 137,821.52
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Solution
The fourth proportional to 239,762.96, 330,883.68 and 137,821.52 is: 190,199.90
Step by Step Solution
- Step 1: Write the proportion equation
239,762.96 : 330,883.68 = 137,821.52 : x - Step 2: Convert to fraction form
239,762.96/330,883.68 = 137,821.52/x - Step 3: Cross multiply
239,762.96x = 330,883.68 × 137,821.52 - Step 4: Simplify right side
239,762.96x = 45,602,891,720.79 - Step 5: Solve for x
x = 45,602,891,720.79/239,762.96 - Step 6: Final answer
x = 190,199.90
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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.