Finding the Fourth Proportional to 211,012.09, 316,518.69 and 53,240.53
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Solution
The fourth proportional to 211,012.09, 316,518.69 and 53,240.53 is: 79,860.94
Step by Step Solution
- Step 1: Write the proportion equation
211,012.09 : 316,518.69 = 53,240.53 : x - Step 2: Convert to fraction form
211,012.09/316,518.69 = 53,240.53/x - Step 3: Cross multiply
211,012.09x = 316,518.69 × 53,240.53 - Step 4: Simplify right side
211,012.09x = 16,851,622,810.51 - Step 5: Solve for x
x = 16,851,622,810.51/211,012.09 - Step 6: Final answer
x = 79,860.94
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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.