Finding the Fourth Proportional to 297,940.40, 446,989.80 and 129,388.40
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Solution
The fourth proportional to 297,940.40, 446,989.80 and 129,388.40 is: 194,116.99
Step by Step Solution
- Step 1: Write the proportion equation
297,940.40 : 446,989.80 = 129,388.40 : x - Step 2: Convert to fraction form
297,940.40/446,989.80 = 129,388.40/x - Step 3: Cross multiply
297,940.40x = 446,989.80 × 129,388.40 - Step 4: Simplify right side
297,940.40x = 57,835,295,038.32 - Step 5: Solve for x
x = 57,835,295,038.32/297,940.40 - Step 6: Final answer
x = 194,116.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.