Finding the Fourth Proportional to 207,042.80, 310,564.20 and 144,057.20
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Solution
The fourth proportional to 207,042.80, 310,564.20 and 144,057.20 is: 216,085.80
Step by Step Solution
- Step 1: Write the proportion equation
207,042.80 : 310,564.20 = 144,057.20 : x - Step 2: Convert to fraction form
207,042.80/310,564.20 = 144,057.20/x - Step 3: Cross multiply
207,042.80x = 310,564.20 × 144,057.20 - Step 4: Simplify right side
207,042.80x = 44,739,009,072.24 - Step 5: Solve for x
x = 44,739,009,072.24/207,042.80 - Step 6: Final answer
x = 216,085.80
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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.