Finding the Fourth Proportional to 307,116.09, 423,801.59 and 169,288.99
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Solution
The fourth proportional to 307,116.09, 423,801.59 and 169,288.99 is: 233,608.54
Step by Step Solution
- Step 1: Write the proportion equation
307,116.09 : 423,801.59 = 169,288.99 : x - Step 2: Convert to fraction form
307,116.09/423,801.59 = 169,288.99/x - Step 3: Cross multiply
307,116.09x = 423,801.59 × 169,288.99 - Step 4: Simplify right side
307,116.09x = 71,744,942,708.27 - Step 5: Solve for x
x = 71,744,942,708.27/307,116.09 - Step 6: Final answer
x = 233,608.54
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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.