Finding the Fourth Proportional to 278,134.38, 417,217.70 and 107,357.07
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Solution
The fourth proportional to 278,134.38, 417,217.70 and 107,357.07 is: 161,041.83
Step by Step Solution
- Step 1: Write the proportion equation
278,134.38 : 417,217.70 = 107,357.07 : x - Step 2: Convert to fraction form
278,134.38/417,217.70 = 107,357.07/x - Step 3: Cross multiply
278,134.38x = 417,217.70 × 107,357.07 - Step 4: Simplify right side
278,134.38x = 44,791,269,824.14 - Step 5: Solve for x
x = 44,791,269,824.14/278,134.38 - Step 6: Final answer
x = 161,041.83
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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.