Finding the Fourth Proportional to 398,175.68, 549,463.02 and 226,071.09
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Solution
The fourth proportional to 398,175.68, 549,463.02 and 226,071.09 is: 311,967.08
Step by Step Solution
- Step 1: Write the proportion equation
398,175.68 : 549,463.02 = 226,071.09 : x - Step 2: Convert to fraction form
398,175.68/549,463.02 = 226,071.09/x - Step 3: Cross multiply
398,175.68x = 549,463.02 × 226,071.09 - Step 4: Simplify right side
398,175.68x = 124,217,703,846.09 - Step 5: Solve for x
x = 124,217,703,846.09/398,175.68 - Step 6: Final answer
x = 311,967.08
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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.