Finding the Fourth Proportional to 430,584.97, 645,458.49 and 205,887.13
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Solution
The fourth proportional to 430,584.97, 645,458.49 and 205,887.13 is: 308,630.36
Step by Step Solution
- Step 1: Write the proportion equation
430,584.97 : 645,458.49 = 205,887.13 : x - Step 2: Convert to fraction form
430,584.97/645,458.49 = 205,887.13/x - Step 3: Cross multiply
430,584.97x = 645,458.49 × 205,887.13 - Step 4: Simplify right side
430,584.97x = 132,891,596,040.23 - Step 5: Solve for x
x = 132,891,596,040.23/430,584.97 - Step 6: Final answer
x = 308,630.36
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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.