Finding the Fourth Proportional to 218,637.20, 327,955.80 and 194,142.80
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Solution
The fourth proportional to 218,637.20, 327,955.80 and 194,142.80 is: 291,214.20
Step by Step Solution
- Step 1: Write the proportion equation
218,637.20 : 327,955.80 = 194,142.80 : x - Step 2: Convert to fraction form
218,637.20/327,955.80 = 194,142.80/x - Step 3: Cross multiply
218,637.20x = 327,955.80 × 194,142.80 - Step 4: Simplify right side
218,637.20x = 63,670,257,288.24 - Step 5: Solve for x
x = 63,670,257,288.24/218,637.20 - Step 6: Final answer
x = 291,214.20
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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.