Finding the Fourth Proportional to 361,661.76, 542,418.53 and 136,944.68
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Solution
The fourth proportional to 361,661.76, 542,418.53 and 136,944.68 is: 205,388.95
Step by Step Solution
- Step 1: Write the proportion equation
361,661.76 : 542,418.53 = 136,944.68 : x - Step 2: Convert to fraction form
361,661.76/542,418.53 = 136,944.68/x - Step 3: Cross multiply
361,661.76x = 542,418.53 × 136,944.68 - Step 4: Simplify right side
361,661.76x = 74,281,328,620.10 - Step 5: Solve for x
x = 74,281,328,620.10/361,661.76 - Step 6: Final answer
x = 205,388.95
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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.