Finding the Fourth Proportional to 205,057.60, 307,816.80 and 158,516.80
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Solution
The fourth proportional to 205,057.60, 307,816.80 and 158,516.80 is: 237,953.31
Step by Step Solution
- Step 1: Write the proportion equation
205,057.60 : 307,816.80 = 158,516.80 : x - Step 2: Convert to fraction form
205,057.60/307,816.80 = 158,516.80/x - Step 3: Cross multiply
205,057.60x = 307,816.80 × 158,516.80 - Step 4: Simplify right side
205,057.60x = 48,794,134,122.24 - Step 5: Solve for x
x = 48,794,134,122.24/205,057.60 - Step 6: Final answer
x = 237,953.31
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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.