Finding the Fourth Proportional to 312,160.13, 430,781.36 and 168,920.17
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Solution
The fourth proportional to 312,160.13, 430,781.36 and 168,920.17 is: 233,110.04
Step by Step Solution
- Step 1: Write the proportion equation
312,160.13 : 430,781.36 = 168,920.17 : x - Step 2: Convert to fraction form
312,160.13/430,781.36 = 168,920.17/x - Step 3: Cross multiply
312,160.13x = 430,781.36 × 168,920.17 - Step 4: Simplify right side
312,160.13x = 72,767,659,161.13 - Step 5: Solve for x
x = 72,767,659,161.13/312,160.13 - Step 6: Final answer
x = 233,110.04
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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.