Finding the Fourth Proportional to 199,549.74, 299,313.68 and 120,642.78
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Solution
The fourth proportional to 199,549.74, 299,313.68 and 120,642.78 is: 180,957.56
Step by Step Solution
- Step 1: Write the proportion equation
199,549.74 : 299,313.68 = 120,642.78 : x - Step 2: Convert to fraction form
199,549.74/299,313.68 = 120,642.78/x - Step 3: Cross multiply
199,549.74x = 299,313.68 × 120,642.78 - Step 4: Simplify right side
199,549.74x = 36,110,033,844.02 - Step 5: Solve for x
x = 36,110,033,844.02/199,549.74 - Step 6: Final answer
x = 180,957.56
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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.