Finding the Fourth Proportional to 319,626.40, 479,266.80 and 132,656.80
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Solution
The fourth proportional to 319,626.40, 479,266.80 and 132,656.80 is: 198,913.48
Step by Step Solution
- Step 1: Write the proportion equation
319,626.40 : 479,266.80 = 132,656.80 : x - Step 2: Convert to fraction form
319,626.40/479,266.80 = 132,656.80/x - Step 3: Cross multiply
319,626.40x = 479,266.80 × 132,656.80 - Step 4: Simplify right side
319,626.40x = 63,578,000,034.24 - Step 5: Solve for x
x = 63,578,000,034.24/319,626.40 - Step 6: Final answer
x = 198,913.48
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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.