Finding the Fourth Proportional to 278,117.58, 417,216.26 and 86,006.94
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Solution
The fourth proportional to 278,117.58, 417,216.26 and 86,006.94 is: 129,022.75
Step by Step Solution
- Step 1: Write the proportion equation
278,117.58 : 417,216.26 = 86,006.94 : x - Step 2: Convert to fraction form
278,117.58/417,216.26 = 86,006.94/x - Step 3: Cross multiply
278,117.58x = 417,216.26 × 86,006.94 - Step 4: Simplify right side
278,117.58x = 35,883,493,840.84 - Step 5: Solve for x
x = 35,883,493,840.84/278,117.58 - Step 6: Final answer
x = 129,022.75
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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.