Finding the Fourth Proportional to 202,389.30, 303,583.95 and 143,291.70
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Solution
The fourth proportional to 202,389.30, 303,583.95 and 143,291.70 is: 214,937.55
Step by Step Solution
- Step 1: Write the proportion equation
202,389.30 : 303,583.95 = 143,291.70 : x - Step 2: Convert to fraction form
202,389.30/303,583.95 = 143,291.70/x - Step 3: Cross multiply
202,389.30x = 303,583.95 × 143,291.70 - Step 4: Simplify right side
202,389.30x = 43,501,060,288.22 - Step 5: Solve for x
x = 43,501,060,288.22/202,389.30 - Step 6: Final answer
x = 214,937.55
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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.