Finding the Fourth Proportional to 254,711.57, 351,509.87 and 139,988.14
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Solution
The fourth proportional to 254,711.57, 351,509.87 and 139,988.14 is: 193,187.98
Step by Step Solution
- Step 1: Write the proportion equation
254,711.57 : 351,509.87 = 139,988.14 : x - Step 2: Convert to fraction form
254,711.57/351,509.87 = 139,988.14/x - Step 3: Cross multiply
254,711.57x = 351,509.87 × 139,988.14 - Step 4: Simplify right side
254,711.57x = 49,207,212,364.14 - Step 5: Solve for x
x = 49,207,212,364.14/254,711.57 - Step 6: Final answer
x = 193,187.98
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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.