Finding the Fourth Proportional to 318,355.20, 477,480.78 and 93,663.09
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Solution
The fourth proportional to 318,355.20, 477,480.78 and 93,663.09 is: 140,479.33
Step by Step Solution
- Step 1: Write the proportion equation
318,355.20 : 477,480.78 = 93,663.09 : x - Step 2: Convert to fraction form
318,355.20/477,480.78 = 93,663.09/x - Step 3: Cross multiply
318,355.20x = 477,480.78 × 93,663.09 - Step 4: Simplify right side
318,355.20x = 44,722,325,270.41 - Step 5: Solve for x
x = 44,722,325,270.41/318,355.20 - Step 6: Final answer
x = 140,479.33
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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.