Finding the Fourth Proportional to 421,933.13, 582,263.18 and 228,336.56
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Solution
The fourth proportional to 421,933.13, 582,263.18 and 228,336.56 is: 315,101.99
Step by Step Solution
- Step 1: Write the proportion equation
421,933.13 : 582,263.18 = 228,336.56 : x - Step 2: Convert to fraction form
421,933.13/582,263.18 = 228,336.56/x - Step 3: Cross multiply
421,933.13x = 582,263.18 × 228,336.56 - Step 4: Simplify right side
421,933.13x = 132,951,967,482.86 - Step 5: Solve for x
x = 132,951,967,482.86/421,933.13 - Step 6: Final answer
x = 315,101.99
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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.