Finding the Fourth Proportional to 278,153.58, 417,247.98 and 107,456.70
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Solution
The fourth proportional to 278,153.58, 417,247.98 and 107,456.70 is: 161,191.85
Step by Step Solution
- Step 1: Write the proportion equation
278,153.58 : 417,247.98 = 107,456.70 : x - Step 2: Convert to fraction form
278,153.58/417,247.98 = 107,456.70/x - Step 3: Cross multiply
278,153.58x = 417,247.98 × 107,456.70 - Step 4: Simplify right side
278,153.58x = 44,836,091,012.47 - Step 5: Solve for x
x = 44,836,091,012.47/278,153.58 - Step 6: Final answer
x = 161,191.85
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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.