Finding the Fourth Proportional to 145,847.80, 218,771.70 and 122,519.80
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Solution
The fourth proportional to 145,847.80, 218,771.70 and 122,519.80 is: 183,779.70
Step by Step Solution
- Step 1: Write the proportion equation
145,847.80 : 218,771.70 = 122,519.80 : x - Step 2: Convert to fraction form
145,847.80/218,771.70 = 122,519.80/x - Step 3: Cross multiply
145,847.80x = 218,771.70 × 122,519.80 - Step 4: Simplify right side
145,847.80x = 26,803,864,929.66 - Step 5: Solve for x
x = 26,803,864,929.66/145,847.80 - Step 6: Final answer
x = 183,779.70
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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.