Finding the Fourth Proportional to 202,718.90, 279,750.11 and 112,077.07
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Solution
The fourth proportional to 202,718.90, 279,750.11 and 112,077.07 is: 154,665.26
Step by Step Solution
- Step 1: Write the proportion equation
202,718.90 : 279,750.11 = 112,077.07 : x - Step 2: Convert to fraction form
202,718.90/279,750.11 = 112,077.07/x - Step 3: Cross multiply
202,718.90x = 279,750.11 × 112,077.07 - Step 4: Simplify right side
202,718.90x = 31,353,571,401.22 - Step 5: Solve for x
x = 31,353,571,401.22/202,718.90 - Step 6: Final answer
x = 154,665.26
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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.