Finding the Fourth Proportional to 446,831.20, 670,246.80 and 260,207.20
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Solution
The fourth proportional to 446,831.20, 670,246.80 and 260,207.20 is: 390,310.80
Step by Step Solution
- Step 1: Write the proportion equation
446,831.20 : 670,246.80 = 260,207.20 : x - Step 2: Convert to fraction form
446,831.20/670,246.80 = 260,207.20/x - Step 3: Cross multiply
446,831.20x = 670,246.80 × 260,207.20 - Step 4: Simplify right side
446,831.20x = 174,403,043,136.96 - Step 5: Solve for x
x = 174,403,043,136.96/446,831.20 - Step 6: Final answer
x = 390,310.80
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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.