Finding the Fourth Proportional to 207,068.13, 285,576.98 and 142,640.19
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Solution
The fourth proportional to 207,068.13, 285,576.98 and 142,640.19 is: 196,721.50
Step by Step Solution
- Step 1: Write the proportion equation
207,068.13 : 285,576.98 = 142,640.19 : x - Step 2: Convert to fraction form
207,068.13/285,576.98 = 142,640.19/x - Step 3: Cross multiply
207,068.13x = 285,576.98 × 142,640.19 - Step 4: Simplify right side
207,068.13x = 40,734,753,973.63 - Step 5: Solve for x
x = 40,734,753,973.63/207,068.13 - Step 6: Final answer
x = 196,721.50
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1.5x scale
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.