Finding the Fourth Proportional to 254,651.27, 351,418.68 and 139,937.31
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Solution
The fourth proportional to 254,651.27, 351,418.68 and 139,937.31 is: 193,113.45
Step by Step Solution
- Step 1: Write the proportion equation
254,651.27 : 351,418.68 = 139,937.31 : x - Step 2: Convert to fraction form
254,651.27/351,418.68 = 139,937.31/x - Step 3: Cross multiply
254,651.27x = 351,418.68 × 139,937.31 - Step 4: Simplify right side
254,651.27x = 49,176,584,762.95 - Step 5: Solve for x
x = 49,176,584,762.95/254,651.27 - Step 6: Final answer
x = 193,113.45
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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.