Finding the Fourth Proportional to 402,656.63, 555,651.97 and 221,367.26
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Solution
The fourth proportional to 402,656.63, 555,651.97 and 221,367.26 is: 305,479.03
Step by Step Solution
- Step 1: Write the proportion equation
402,656.63 : 555,651.97 = 221,367.26 : x - Step 2: Convert to fraction form
402,656.63/555,651.97 = 221,367.26/x - Step 3: Cross multiply
402,656.63x = 555,651.97 × 221,367.26 - Step 4: Simplify right side
402,656.63x = 123,003,154,948.21 - Step 5: Solve for x
x = 123,003,154,948.21/402,656.63 - Step 6: Final answer
x = 305,479.03
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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.