Finding the Fourth Proportional to 272,446.79, 408,702.99 and 90,083.79
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Solution
The fourth proportional to 272,446.79, 408,702.99 and 90,083.79 is: 135,136.53
Step by Step Solution
- Step 1: Write the proportion equation
272,446.79 : 408,702.99 = 90,083.79 : x - Step 2: Convert to fraction form
272,446.79/408,702.99 = 90,083.79/x - Step 3: Cross multiply
272,446.79x = 408,702.99 × 90,083.79 - Step 4: Simplify right side
272,446.79x = 36,817,514,323.53 - Step 5: Solve for x
x = 36,817,514,323.53/272,446.79 - Step 6: Final answer
x = 135,136.53
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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.