Finding the Fourth Proportional to 198,258.30, 297,387.99 and 139,357.44
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Solution
The fourth proportional to 198,258.30, 297,387.99 and 139,357.44 is: 209,036.54
Step by Step Solution
- Step 1: Write the proportion equation
198,258.30 : 297,387.99 = 139,357.44 : x - Step 2: Convert to fraction form
198,258.30/297,387.99 = 139,357.44/x - Step 3: Cross multiply
198,258.30x = 297,387.99 × 139,357.44 - Step 4: Simplify right side
198,258.30x = 41,443,228,973.15 - Step 5: Solve for x
x = 41,443,228,973.15/198,258.30 - Step 6: Final answer
x = 209,036.54
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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.