Finding the Fourth Proportional to 313,726.25, 432,942.30 and 170,485.95
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Solution
The fourth proportional to 313,726.25, 432,942.30 and 170,485.95 is: 235,270.65
Step by Step Solution
- Step 1: Write the proportion equation
313,726.25 : 432,942.30 = 170,485.95 : x - Step 2: Convert to fraction form
313,726.25/432,942.30 = 170,485.95/x - Step 3: Cross multiply
313,726.25x = 432,942.30 × 170,485.95 - Step 4: Simplify right side
313,726.25x = 73,810,579,310.69 - Step 5: Solve for x
x = 73,810,579,310.69/313,726.25 - Step 6: Final answer
x = 235,270.65
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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.