Finding the Fourth Proportional to 272,136.20, 375,520.74 and 157,406.18
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Solution
The fourth proportional to 272,136.20, 375,520.74 and 157,406.18 is: 217,204.79
Step by Step Solution
- Step 1: Write the proportion equation
272,136.20 : 375,520.74 = 157,406.18 : x - Step 2: Convert to fraction form
272,136.20/375,520.74 = 157,406.18/x - Step 3: Cross multiply
272,136.20x = 375,520.74 × 157,406.18 - Step 4: Simplify right side
272,136.20x = 59,109,285,194.17 - Step 5: Solve for x
x = 59,109,285,194.17/272,136.20 - Step 6: Final answer
x = 217,204.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.