Finding the Fourth Proportional to 492,865.99, 739,344.05 and 137,878.96
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Solution
The fourth proportional to 492,865.99, 739,344.05 and 137,878.96 is: 206,831.05
Step by Step Solution
- Step 1: Write the proportion equation
492,865.99 : 739,344.05 = 137,878.96 : x - Step 2: Convert to fraction form
492,865.99/739,344.05 = 137,878.96/x - Step 3: Cross multiply
492,865.99x = 739,344.05 × 137,878.96 - Step 4: Simplify right side
492,865.99x = 101,939,988,696.19 - Step 5: Solve for x
x = 101,939,988,696.19/492,865.99 - Step 6: Final answer
x = 206,831.05
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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.