Finding the Fourth Proportional to 321,643.64, 482,535.63 and 121,965.99
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Solution
The fourth proportional to 321,643.64, 482,535.63 and 121,965.99 is: 182,975.59
Step by Step Solution
- Step 1: Write the proportion equation
321,643.64 : 482,535.63 = 121,965.99 : x - Step 2: Convert to fraction form
321,643.64/482,535.63 = 121,965.99/x - Step 3: Cross multiply
321,643.64x = 482,535.63 × 121,965.99 - Step 4: Simplify right side
321,643.64x = 58,852,934,013.72 - Step 5: Solve for x
x = 58,852,934,013.72/321,643.64 - Step 6: Final answer
x = 182,975.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.