Finding the Fourth Proportional to 278,376.63, 418,342.55 and 260,452.95
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Solution
The fourth proportional to 278,376.63, 418,342.55 and 260,452.95 is: 391,406.96
Step by Step Solution
- Step 1: Write the proportion equation
278,376.63 : 418,342.55 = 260,452.95 : x - Step 2: Convert to fraction form
278,376.63/418,342.55 = 260,452.95/x - Step 3: Cross multiply
278,376.63x = 418,342.55 × 260,452.95 - Step 4: Simplify right side
278,376.63x = 108,958,551,258.02 - Step 5: Solve for x
x = 108,958,551,258.02/278,376.63 - Step 6: Final answer
x = 391,406.96
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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.