Finding the Fourth Proportional to 194,753.79, 268,688.21 and 143,889.03
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Solution
The fourth proportional to 194,753.79, 268,688.21 and 143,889.03 is: 198,513.65
Step by Step Solution
- Step 1: Write the proportion equation
194,753.79 : 268,688.21 = 143,889.03 : x - Step 2: Convert to fraction form
194,753.79/268,688.21 = 143,889.03/x - Step 3: Cross multiply
194,753.79x = 268,688.21 × 143,889.03 - Step 4: Simplify right side
194,753.79x = 38,661,285,189.89 - Step 5: Solve for x
x = 38,661,285,189.89/194,753.79 - Step 6: Final answer
x = 198,513.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.