Finding the Fourth Proportional to 278,898.24, 418,178.56 and 112,491.84
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Solution
The fourth proportional to 278,898.24, 418,178.56 and 112,491.84 is: 168,669.68
Step by Step Solution
- Step 1: Write the proportion equation
278,898.24 : 418,178.56 = 112,491.84 : x - Step 2: Convert to fraction form
278,898.24/418,178.56 = 112,491.84/x - Step 3: Cross multiply
278,898.24x = 418,178.56 × 112,491.84 - Step 4: Simplify right side
278,898.24x = 47,041,675,662.95 - Step 5: Solve for x
x = 47,041,675,662.95/278,898.24 - Step 6: Final answer
x = 168,669.68
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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.