Finding the Fourth Proportional to 289,632.14, 399,660.08 and 160,566.99
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Solution
The fourth proportional to 289,632.14, 399,660.08 and 160,566.99 is: 221,564.56
Step by Step Solution
- Step 1: Write the proportion equation
289,632.14 : 399,660.08 = 160,566.99 : x - Step 2: Convert to fraction form
289,632.14/399,660.08 = 160,566.99/x - Step 3: Cross multiply
289,632.14x = 399,660.08 × 160,566.99 - Step 4: Simplify right side
289,632.14x = 64,172,215,265.92 - Step 5: Solve for x
x = 64,172,215,265.92/289,632.14 - Step 6: Final answer
x = 221,564.56
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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.