Finding the Fourth Proportional to 289,862.20, 434,255.70 and 164,831.80
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Solution
The fourth proportional to 289,862.20, 434,255.70 and 164,831.80 is: 246,941.99
Step by Step Solution
- Step 1: Write the proportion equation
289,862.20 : 434,255.70 = 164,831.80 : x - Step 2: Convert to fraction form
289,862.20/434,255.70 = 164,831.80/x - Step 3: Cross multiply
289,862.20x = 434,255.70 × 164,831.80 - Step 4: Simplify right side
289,862.20x = 71,579,148,691.26 - Step 5: Solve for x
x = 71,579,148,691.26/289,862.20 - Step 6: Final answer
x = 246,941.99
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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.