Finding the Fourth Proportional to 402,867.75, 555,973.35 and 221,596.54
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Solution
The fourth proportional to 402,867.75, 555,973.35 and 221,596.54 is: 305,811.95
Step by Step Solution
- Step 1: Write the proportion equation
402,867.75 : 555,973.35 = 221,596.54 : x - Step 2: Convert to fraction form
402,867.75/555,973.35 = 221,596.54/x - Step 3: Cross multiply
402,867.75x = 555,973.35 × 221,596.54 - Step 4: Simplify right side
402,867.75x = 123,201,770,692.21 - Step 5: Solve for x
x = 123,201,770,692.21/402,867.75 - Step 6: Final answer
x = 305,811.95
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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.