Finding the Fourth Proportional to 379,828.99, 524,142.80 and 207,712.99
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Solution
The fourth proportional to 379,828.99, 524,142.80 and 207,712.99 is: 286,632.33
Step by Step Solution
- Step 1: Write the proportion equation
379,828.99 : 524,142.80 = 207,712.99 : x - Step 2: Convert to fraction form
379,828.99/524,142.80 = 207,712.99/x - Step 3: Cross multiply
379,828.99x = 524,142.80 × 207,712.99 - Step 4: Simplify right side
379,828.99x = 108,871,268,174.97 - Step 5: Solve for x
x = 108,871,268,174.97/379,828.99 - Step 6: Final answer
x = 286,632.33
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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.