Finding the Fourth Proportional to 210,363.20, 290,137.12 and 134,917.44
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Solution
The fourth proportional to 210,363.20, 290,137.12 and 134,917.44 is: 186,080.82
Step by Step Solution
- Step 1: Write the proportion equation
210,363.20 : 290,137.12 = 134,917.44 : x - Step 2: Convert to fraction form
210,363.20/290,137.12 = 134,917.44/x - Step 3: Cross multiply
210,363.20x = 290,137.12 × 134,917.44 - Step 4: Simplify right side
210,363.20x = 39,144,557,479.37 - Step 5: Solve for x
x = 39,144,557,479.37/210,363.20 - Step 6: Final answer
x = 186,080.82
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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.