Finding the Fourth Proportional to 239,621.81, 330,618.66 and 157,941.01
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Solution
The fourth proportional to 239,621.81, 330,618.66 and 157,941.01 is: 217,919.42
Step by Step Solution
- Step 1: Write the proportion equation
239,621.81 : 330,618.66 = 157,941.01 : x - Step 2: Convert to fraction form
239,621.81/330,618.66 = 157,941.01/x - Step 3: Cross multiply
239,621.81x = 330,618.66 × 157,941.01 - Step 4: Simplify right side
239,621.81x = 52,218,245,085.25 - Step 5: Solve for x
x = 52,218,245,085.25/239,621.81 - Step 6: Final answer
x = 217,919.42
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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.