Finding the Fourth Proportional to 312,136.48, 430,746.96 and 168,899.08
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Solution
The fourth proportional to 312,136.48, 430,746.96 and 168,899.08 is: 233,079.98
Step by Step Solution
- Step 1: Write the proportion equation
312,136.48 : 430,746.96 = 168,899.08 : x - Step 2: Convert to fraction form
312,136.48/430,746.96 = 168,899.08/x - Step 3: Cross multiply
312,136.48x = 430,746.96 × 168,899.08 - Step 4: Simplify right side
312,136.48x = 72,752,765,256.80 - Step 5: Solve for x
x = 72,752,765,256.80/312,136.48 - Step 6: Final answer
x = 233,079.98
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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.