Finding the Fourth Proportional to 354,378.48, 489,160.80 and 211,183.44
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Solution
The fourth proportional to 354,378.48, 489,160.80 and 211,183.44 is: 291,503.76
Step by Step Solution
- Step 1: Write the proportion equation
354,378.48 : 489,160.80 = 211,183.44 : x - Step 2: Convert to fraction form
354,378.48/489,160.80 = 211,183.44/x - Step 3: Cross multiply
354,378.48x = 489,160.80 × 211,183.44 - Step 4: Simplify right side
354,378.48x = 103,302,660,457.15 - Step 5: Solve for x
x = 103,302,660,457.15/354,378.48 - Step 6: Final answer
x = 291,503.76
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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.