Finding the Fourth Proportional to 358,521.40, 537,782.10 and 331,487.80
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Solution
The fourth proportional to 358,521.40, 537,782.10 and 331,487.80 is: 497,231.70
Step by Step Solution
- Step 1: Write the proportion equation
358,521.40 : 537,782.10 = 331,487.80 : x - Step 2: Convert to fraction form
358,521.40/537,782.10 = 331,487.80/x - Step 3: Cross multiply
358,521.40x = 537,782.10 × 331,487.80 - Step 4: Simplify right side
358,521.40x = 178,268,205,208.38 - Step 5: Solve for x
x = 178,268,205,208.38/358,521.40 - Step 6: Final answer
x = 497,231.70
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1.5x scale
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.