Finding the Fourth Proportional to 279,023.19, 418,489.97 and 76,572.00
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Solution
The fourth proportional to 279,023.19, 418,489.97 and 76,572.00 is: 114,845.69
Step by Step Solution
- Step 1: Write the proportion equation
279,023.19 : 418,489.97 = 76,572.00 : x - Step 2: Convert to fraction form
279,023.19/418,489.97 = 76,572.00/x - Step 3: Cross multiply
279,023.19x = 418,489.97 × 76,572.00 - Step 4: Simplify right side
279,023.19x = 32,044,612,049.83 - Step 5: Solve for x
x = 32,044,612,049.83/279,023.19 - Step 6: Final answer
x = 114,845.69
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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.