Finding the Fourth Proportional to 254,863.05, 351,718.65 and 140,135.76
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Solution
The fourth proportional to 254,863.05, 351,718.65 and 140,135.76 is: 193,391.55
Step by Step Solution
- Step 1: Write the proportion equation
254,863.05 : 351,718.65 = 140,135.76 : x - Step 2: Convert to fraction form
254,863.05/351,718.65 = 140,135.76/x - Step 3: Cross multiply
254,863.05x = 351,718.65 × 140,135.76 - Step 4: Simplify right side
254,863.05x = 49,288,360,323.92 - Step 5: Solve for x
x = 49,288,360,323.92/254,863.05 - Step 6: Final answer
x = 193,391.55
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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.