Finding the Fourth Proportional to 207,069.13, 285,578.35 and 142,641.19
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Solution
The fourth proportional to 207,069.13, 285,578.35 and 142,641.19 is: 196,722.88
Step by Step Solution
- Step 1: Write the proportion equation
207,069.13 : 285,578.35 = 142,641.19 : x - Step 2: Convert to fraction form
207,069.13/285,578.35 = 142,641.19/x - Step 3: Cross multiply
207,069.13x = 285,578.35 × 142,641.19 - Step 4: Simplify right side
207,069.13x = 40,735,235,682.24 - Step 5: Solve for x
x = 40,735,235,682.24/207,069.13 - Step 6: Final answer
x = 196,722.88
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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.