Finding the Fourth Proportional to 312,126.48, 430,733.16 and 168,889.05
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Solution
The fourth proportional to 312,126.48, 430,733.16 and 168,889.05 is: 233,066.14
Step by Step Solution
- Step 1: Write the proportion equation
312,126.48 : 430,733.16 = 168,889.05 : x - Step 2: Convert to fraction form
312,126.48/430,733.16 = 168,889.05/x - Step 3: Cross multiply
312,126.48x = 430,733.16 × 168,889.05 - Step 4: Simplify right side
312,126.48x = 72,746,114,195.90 - Step 5: Solve for x
x = 72,746,114,195.90/312,126.48 - Step 6: Final answer
x = 233,066.14
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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.