Finding the Fourth Proportional to 170,809.74, 256,370.09 and 90,914.79
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Solution
The fourth proportional to 170,809.74, 256,370.09 and 90,914.79 is: 136,454.94
Step by Step Solution
- Step 1: Write the proportion equation
170,809.74 : 256,370.09 = 90,914.79 : x - Step 2: Convert to fraction form
170,809.74/256,370.09 = 90,914.79/x - Step 3: Cross multiply
170,809.74x = 256,370.09 × 90,914.79 - Step 4: Simplify right side
170,809.74x = 23,307,832,440.06 - Step 5: Solve for x
x = 23,307,832,440.06/170,809.74 - Step 6: Final answer
x = 136,454.94
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.