Finding the Fourth Proportional to 190,808.40, 263,630.52 and 143,219.28
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Solution
The fourth proportional to 190,808.40, 263,630.52 and 143,219.28 is: 197,878.99
Step by Step Solution
- Step 1: Write the proportion equation
190,808.40 : 263,630.52 = 143,219.28 : x - Step 2: Convert to fraction form
190,808.40/263,630.52 = 143,219.28/x - Step 3: Cross multiply
190,808.40x = 263,630.52 × 143,219.28 - Step 4: Simplify right side
190,808.40x = 37,756,973,260.43 - Step 5: Solve for x
x = 37,756,973,260.43/190,808.40 - Step 6: Final answer
x = 197,878.99
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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.