Finding the Fourth Proportional to 329,439.74, 454,287.40 and 281,850.62
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Solution
The fourth proportional to 329,439.74, 454,287.40 and 281,850.62 is: 388,663.45
Step by Step Solution
- Step 1: Write the proportion equation
329,439.74 : 454,287.40 = 281,850.62 : x - Step 2: Convert to fraction form
329,439.74/454,287.40 = 281,850.62/x - Step 3: Cross multiply
329,439.74x = 454,287.40 × 281,850.62 - Step 4: Simplify right side
329,439.74x = 128,041,185,348.19 - Step 5: Solve for x
x = 128,041,185,348.19/329,439.74 - Step 6: Final answer
x = 388,663.45
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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.