Finding the Fourth Proportional to 312,136.23, 430,746.62 and 168,898.80
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Solution
The fourth proportional to 312,136.23, 430,746.62 and 168,898.80 is: 233,079.60
Step by Step Solution
- Step 1: Write the proportion equation
312,136.23 : 430,746.62 = 168,898.80 : x - Step 2: Convert to fraction form
312,136.23/430,746.62 = 168,898.80/x - Step 3: Cross multiply
312,136.23x = 430,746.62 × 168,898.80 - Step 4: Simplify right side
312,136.23x = 72,752,586,377.56 - Step 5: Solve for x
x = 72,752,586,377.56/312,136.23 - Step 6: Final answer
x = 233,079.60
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1.5x scale
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.