Finding the Fourth Proportional to 306,953.06, 423,588.84 and 170,986.82
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Solution
The fourth proportional to 306,953.06, 423,588.84 and 170,986.82 is: 235,958.26
Step by Step Solution
- Step 1: Write the proportion equation
306,953.06 : 423,588.84 = 170,986.82 : x - Step 2: Convert to fraction form
306,953.06/423,588.84 = 170,986.82/x - Step 3: Cross multiply
306,953.06x = 423,588.84 × 170,986.82 - Step 4: Simplify right side
306,953.06x = 72,428,108,739.09 - Step 5: Solve for x
x = 72,428,108,739.09/306,953.06 - Step 6: Final answer
x = 235,958.26
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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.