Finding the Fourth Proportional to 427,556.90, 640,912.35 and 202,521.80
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Solution
The fourth proportional to 427,556.90, 640,912.35 and 202,521.80 is: 303,582.34
Step by Step Solution
- Step 1: Write the proportion equation
427,556.90 : 640,912.35 = 202,521.80 : x - Step 2: Convert to fraction form
427,556.90/640,912.35 = 202,521.80/x - Step 3: Cross multiply
427,556.90x = 640,912.35 × 202,521.80 - Step 4: Simplify right side
427,556.90x = 129,798,722,764.23 - Step 5: Solve for x
x = 129,798,722,764.23/427,556.90 - Step 6: Final answer
x = 303,582.34
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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.