Finding the Fourth Proportional to 390,625.93, 585,470.11 and 201,175.44
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Solution
The fourth proportional to 390,625.93, 585,470.11 and 201,175.44 is: 301,521.73
Step by Step Solution
- Step 1: Write the proportion equation
390,625.93 : 585,470.11 = 201,175.44 : x - Step 2: Convert to fraction form
390,625.93/585,470.11 = 201,175.44/x - Step 3: Cross multiply
390,625.93x = 585,470.11 × 201,175.44 - Step 4: Simplify right side
390,625.93x = 117,782,206,986.10 - Step 5: Solve for x
x = 117,782,206,986.10/390,625.93 - Step 6: Final answer
x = 301,521.73
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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.