Finding the Fourth Proportional to 247,649.86, 371,528.14 and 76,868.02
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Solution
The fourth proportional to 247,649.86, 371,528.14 and 76,868.02 is: 115,318.59
Step by Step Solution
- Step 1: Write the proportion equation
247,649.86 : 371,528.14 = 76,868.02 : x - Step 2: Convert to fraction form
247,649.86/371,528.14 = 76,868.02/x - Step 3: Cross multiply
247,649.86x = 371,528.14 × 76,868.02 - Step 4: Simplify right side
247,649.86x = 28,558,632,496.08 - Step 5: Solve for x
x = 28,558,632,496.08/247,649.86 - Step 6: Final answer
x = 115,318.59
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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.