Finding the Fourth Proportional to 455,695.81, 628,857.23 and 251,759.88
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Solution
The fourth proportional to 455,695.81, 628,857.23 and 251,759.88 is: 347,426.99
Step by Step Solution
- Step 1: Write the proportion equation
455,695.81 : 628,857.23 = 251,759.88 : x - Step 2: Convert to fraction form
455,695.81/628,857.23 = 251,759.88/x - Step 3: Cross multiply
455,695.81x = 628,857.23 × 251,759.88 - Step 4: Simplify right side
455,695.81x = 158,321,023,277.50 - Step 5: Solve for x
x = 158,321,023,277.50/455,695.81 - Step 6: Final answer
x = 347,426.99
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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.