Finding the Fourth Proportional to 402,451.13, 555,371.37 and 221,163.01
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Solution
The fourth proportional to 402,451.13, 555,371.37 and 221,163.01 is: 305,198.80
Step by Step Solution
- Step 1: Write the proportion equation
402,451.13 : 555,371.37 = 221,163.01 : x - Step 2: Convert to fraction form
402,451.13/555,371.37 = 221,163.01/x - Step 3: Cross multiply
402,451.13x = 555,371.37 × 221,163.01 - Step 4: Simplify right side
402,451.13x = 122,827,602,468.60 - Step 5: Solve for x
x = 122,827,602,468.60/402,451.13 - Step 6: Final answer
x = 305,198.80
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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.