Finding the Fourth Proportional to 285,212.25, 393,778.59 and 183,276.99
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Solution
The fourth proportional to 285,212.25, 393,778.59 and 183,276.99 is: 253,041.57
Step by Step Solution
- Step 1: Write the proportion equation
285,212.25 : 393,778.59 = 183,276.99 : x - Step 2: Convert to fraction form
285,212.25/393,778.59 = 183,276.99/x - Step 3: Cross multiply
285,212.25x = 393,778.59 × 183,276.99 - Step 4: Simplify right side
285,212.25x = 72,170,554,701.64 - Step 5: Solve for x
x = 72,170,554,701.64/285,212.25 - Step 6: Final answer
x = 253,041.57
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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.