Finding the Fourth Proportional to 211,220.21, 316,901.01 and 69,072.05
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Solution
The fourth proportional to 211,220.21, 316,901.01 and 69,072.05 is: 103,631.19
Step by Step Solution
- Step 1: Write the proportion equation
211,220.21 : 316,901.01 = 69,072.05 : x - Step 2: Convert to fraction form
211,220.21/316,901.01 = 69,072.05/x - Step 3: Cross multiply
211,220.21x = 316,901.01 × 69,072.05 - Step 4: Simplify right side
211,220.21x = 21,889,002,407.77 - Step 5: Solve for x
x = 21,889,002,407.77/211,220.21 - Step 6: Final answer
x = 103,631.19
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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.