Finding the Fourth Proportional to 328,848.40, 493,402.20 and 129,134.80
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Solution
The fourth proportional to 328,848.40, 493,402.20 and 129,134.80 is: 193,753.09
Step by Step Solution
- Step 1: Write the proportion equation
328,848.40 : 493,402.20 = 129,134.80 : x - Step 2: Convert to fraction form
328,848.40/493,402.20 = 129,134.80/x - Step 3: Cross multiply
328,848.40x = 493,402.20 × 129,134.80 - Step 4: Simplify right side
328,848.40x = 63,715,394,416.56 - Step 5: Solve for x
x = 63,715,394,416.56/328,848.40 - Step 6: Final answer
x = 193,753.09
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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.