Finding the Fourth Proportional to 285,549.23, 393,953.69 and 170,831.19
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Solution
The fourth proportional to 285,549.23, 393,953.69 and 170,831.19 is: 235,684.68
Step by Step Solution
- Step 1: Write the proportion equation
285,549.23 : 393,953.69 = 170,831.19 : x - Step 2: Convert to fraction form
285,549.23/393,953.69 = 170,831.19/x - Step 3: Cross multiply
285,549.23x = 393,953.69 × 170,831.19 - Step 4: Simplify right side
285,549.23x = 67,299,579,572.00 - Step 5: Solve for x
x = 67,299,579,572.00/285,549.23 - Step 6: Final answer
x = 235,684.68
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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.