Finding the Fourth Proportional to 402,656.19, 555,651.37 and 221,366.80
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Solution
The fourth proportional to 402,656.19, 555,651.37 and 221,366.80 is: 305,478.39
Step by Step Solution
- Step 1: Write the proportion equation
402,656.19 : 555,651.37 = 221,366.80 : x - Step 2: Convert to fraction form
402,656.19/555,651.37 = 221,366.80/x - Step 3: Cross multiply
402,656.19x = 555,651.37 × 221,366.80 - Step 4: Simplify right side
402,656.19x = 123,002,765,692.52 - Step 5: Solve for x
x = 123,002,765,692.52/402,656.19 - Step 6: Final answer
x = 305,478.39
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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.