Finding the Fourth Proportional to 199,642.56, 299,511.36 and 66,523.68
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Solution
The fourth proportional to 199,642.56, 299,511.36 and 66,523.68 is: 99,801.35
Step by Step Solution
- Step 1: Write the proportion equation
199,642.56 : 299,511.36 = 66,523.68 : x - Step 2: Convert to fraction form
199,642.56/299,511.36 = 66,523.68/x - Step 3: Cross multiply
199,642.56x = 299,511.36 × 66,523.68 - Step 4: Simplify right side
199,642.56x = 19,924,597,869.00 - Step 5: Solve for x
x = 19,924,597,869.00/199,642.56 - Step 6: Final answer
x = 99,801.35
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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.