Finding the Fourth Proportional to 399,307.12, 598,760.88 and 132,974.80
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Solution
The fourth proportional to 399,307.12, 598,760.88 and 132,974.80 is: 199,395.66
Step by Step Solution
- Step 1: Write the proportion equation
399,307.12 : 598,760.88 = 132,974.80 : x - Step 2: Convert to fraction form
399,307.12/598,760.88 = 132,974.80/x - Step 3: Cross multiply
399,307.12x = 598,760.88 × 132,974.80 - Step 4: Simplify right side
399,307.12x = 79,620,108,265.82 - Step 5: Solve for x
x = 79,620,108,265.82/399,307.12 - Step 6: Final answer
x = 199,395.66
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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.