Finding the Fourth Proportional to 390,773.82, 585,733.12 and 201,245.66
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Solution
The fourth proportional to 390,773.82, 585,733.12 and 201,245.66 is: 301,648.27
Step by Step Solution
- Step 1: Write the proportion equation
390,773.82 : 585,733.12 = 201,245.66 : x - Step 2: Convert to fraction form
390,773.82/585,733.12 = 201,245.66/x - Step 3: Cross multiply
390,773.82x = 585,733.12 × 201,245.66 - Step 4: Simplify right side
390,773.82x = 117,876,248,318.26 - Step 5: Solve for x
x = 117,876,248,318.26/390,773.82 - Step 6: Final answer
x = 301,648.27
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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.