Finding the Fourth Proportional to 215,378.64, 297,201.05 and 124,763.71
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Solution
The fourth proportional to 215,378.64, 297,201.05 and 124,763.71 is: 172,161.48
Step by Step Solution
- Step 1: Write the proportion equation
215,378.64 : 297,201.05 = 124,763.71 : x - Step 2: Convert to fraction form
215,378.64/297,201.05 = 124,763.71/x - Step 3: Cross multiply
215,378.64x = 297,201.05 × 124,763.71 - Step 4: Simplify right side
215,378.64x = 37,079,905,613.90 - Step 5: Solve for x
x = 37,079,905,613.90/215,378.64 - Step 6: Final answer
x = 172,161.48
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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.