Finding the Fourth Proportional to 210,965.99, 291,135.79 and 115,470.63
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Solution
The fourth proportional to 210,965.99, 291,135.79 and 115,470.63 is: 159,350.96
Step by Step Solution
- Step 1: Write the proportion equation
210,965.99 : 291,135.79 = 115,470.63 : x - Step 2: Convert to fraction form
210,965.99/291,135.79 = 115,470.63/x - Step 3: Cross multiply
210,965.99x = 291,135.79 × 115,470.63 - Step 4: Simplify right side
210,965.99x = 33,617,633,086.85 - Step 5: Solve for x
x = 33,617,633,086.85/210,965.99 - Step 6: Final answer
x = 159,350.96
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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.