Finding the Fourth Proportional to 278,818.83, 417,802.41 and 207,396.09
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Solution
The fourth proportional to 278,818.83, 417,802.41 and 207,396.09 is: 310,777.38
Step by Step Solution
- Step 1: Write the proportion equation
278,818.83 : 417,802.41 = 207,396.09 : x - Step 2: Convert to fraction form
278,818.83/417,802.41 = 207,396.09/x - Step 3: Cross multiply
278,818.83x = 417,802.41 × 207,396.09 - Step 4: Simplify right side
278,818.83x = 86,650,586,226.58 - Step 5: Solve for x
x = 86,650,586,226.58/278,818.83 - Step 6: Final answer
x = 310,777.38
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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.