Finding the Fourth Proportional to 278,296.26, 417,504.87 and 91,300.74
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Solution
The fourth proportional to 278,296.26, 417,504.87 and 91,300.74 is: 136,970.95
Step by Step Solution
- Step 1: Write the proportion equation
278,296.26 : 417,504.87 = 91,300.74 : x - Step 2: Convert to fraction form
278,296.26/417,504.87 = 91,300.74/x - Step 3: Cross multiply
278,296.26x = 417,504.87 × 91,300.74 - Step 4: Simplify right side
278,296.26x = 38,118,503,584.60 - Step 5: Solve for x
x = 38,118,503,584.60/278,296.26 - Step 6: Final answer
x = 136,970.95
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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.