Finding the Fourth Proportional to 358,331.80, 537,497.70 and 319,624.60
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Solution
The fourth proportional to 358,331.80, 537,497.70 and 319,624.60 is: 479,436.90
Step by Step Solution
- Step 1: Write the proportion equation
358,331.80 : 537,497.70 = 319,624.60 : x - Step 2: Convert to fraction form
358,331.80/537,497.70 = 319,624.60/x - Step 3: Cross multiply
358,331.80x = 537,497.70 × 319,624.60 - Step 4: Simplify right side
358,331.80x = 171,797,487,363.42 - Step 5: Solve for x
x = 171,797,487,363.42/358,331.80 - Step 6: Final answer
x = 479,436.90
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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.