Finding the Fourth Proportional to 202,294.80, 303,442.20 and 139,309.20
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Solution
The fourth proportional to 202,294.80, 303,442.20 and 139,309.20 is: 208,963.80
Step by Step Solution
- Step 1: Write the proportion equation
202,294.80 : 303,442.20 = 139,309.20 : x - Step 2: Convert to fraction form
202,294.80/303,442.20 = 139,309.20/x - Step 3: Cross multiply
202,294.80x = 303,442.20 × 139,309.20 - Step 4: Simplify right side
202,294.80x = 42,272,290,128.24 - Step 5: Solve for x
x = 42,272,290,128.24/202,294.80 - Step 6: Final answer
x = 208,963.80
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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.