Finding the Fourth Proportional to 199,623.20, 299,434.80 and 99,798.80
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Solution
The fourth proportional to 199,623.20, 299,434.80 and 99,798.80 is: 149,698.20
Step by Step Solution
- Step 1: Write the proportion equation
199,623.20 : 299,434.80 = 99,798.80 : x - Step 2: Convert to fraction form
199,623.20/299,434.80 = 99,798.80/x - Step 3: Cross multiply
199,623.20x = 299,434.80 × 99,798.80 - Step 4: Simplify right side
199,623.20x = 29,883,233,718.24 - Step 5: Solve for x
x = 29,883,233,718.24/199,623.20 - Step 6: Final answer
x = 149,698.20
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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.