Finding the Fourth Proportional to 201,253.20, 301,879.80 and 122,521.20
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Solution
The fourth proportional to 201,253.20, 301,879.80 and 122,521.20 is: 183,781.80
Step by Step Solution
- Step 1: Write the proportion equation
201,253.20 : 301,879.80 = 122,521.20 : x - Step 2: Convert to fraction form
201,253.20/301,879.80 = 122,521.20/x - Step 3: Cross multiply
201,253.20x = 301,879.80 × 122,521.20 - Step 4: Simplify right side
201,253.20x = 36,986,675,351.76 - Step 5: Solve for x
x = 36,986,675,351.76/201,253.20 - Step 6: Final answer
x = 183,781.80
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1.5x scale
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.