Finding the Fourth Proportional to 220,313.70, 330,470.55 and 141,581.70
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Solution
The fourth proportional to 220,313.70, 330,470.55 and 141,581.70 is: 212,372.55
Step by Step Solution
- Step 1: Write the proportion equation
220,313.70 : 330,470.55 = 141,581.70 : x - Step 2: Convert to fraction form
220,313.70/330,470.55 = 141,581.70/x - Step 3: Cross multiply
220,313.70x = 330,470.55 × 141,581.70 - Step 4: Simplify right side
220,313.70x = 46,788,582,268.94 - Step 5: Solve for x
x = 46,788,582,268.94/220,313.70 - Step 6: Final answer
x = 212,372.55
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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.