Finding the Fourth Proportional to 230,490.97, 318,061.29 and 128,512.08
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Solution
The fourth proportional to 230,490.97, 318,061.29 and 128,512.08 is: 177,337.61
Step by Step Solution
- Step 1: Write the proportion equation
230,490.97 : 318,061.29 = 128,512.08 : x - Step 2: Convert to fraction form
230,490.97/318,061.29 = 128,512.08/x - Step 3: Cross multiply
230,490.97x = 318,061.29 × 128,512.08 - Step 4: Simplify right side
230,490.97x = 40,874,717,945.38 - Step 5: Solve for x
x = 40,874,717,945.38/230,490.97 - Step 6: Final answer
x = 177,337.61
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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.