Finding the Fourth Proportional to 278,911.76, 418,363.99 and 68,551.52
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Solution
The fourth proportional to 278,911.76, 418,363.99 and 68,551.52 is: 102,826.38
Step by Step Solution
- Step 1: Write the proportion equation
278,911.76 : 418,363.99 = 68,551.52 : x - Step 2: Convert to fraction form
278,911.76/418,363.99 = 68,551.52/x - Step 3: Cross multiply
278,911.76x = 418,363.99 × 68,551.52 - Step 4: Simplify right side
278,911.76x = 28,679,485,164.57 - Step 5: Solve for x
x = 28,679,485,164.57/278,911.76 - Step 6: Final answer
x = 102,826.38
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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.