Finding the Fourth Proportional to 216,792.42, 298,974.75 and 186,155.09
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Solution
The fourth proportional to 216,792.42, 298,974.75 and 186,155.09 is: 256,723.32
Step by Step Solution
- Step 1: Write the proportion equation
216,792.42 : 298,974.75 = 186,155.09 : x - Step 2: Convert to fraction form
216,792.42/298,974.75 = 186,155.09/x - Step 3: Cross multiply
216,792.42x = 298,974.75 × 186,155.09 - Step 4: Simplify right side
216,792.42x = 55,655,669,999.10 - Step 5: Solve for x
x = 55,655,669,999.10/216,792.42 - Step 6: Final answer
x = 256,723.32
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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.