Finding the Fourth Proportional to 216,738.46, 299,110.35 and 121,246.75
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Solution
The fourth proportional to 216,738.46, 299,110.35 and 121,246.75 is: 167,326.82
Step by Step Solution
- Step 1: Write the proportion equation
216,738.46 : 299,110.35 = 121,246.75 : x - Step 2: Convert to fraction form
216,738.46/299,110.35 = 121,246.75/x - Step 3: Cross multiply
216,738.46x = 299,110.35 × 121,246.75 - Step 4: Simplify right side
216,738.46x = 36,266,157,828.86 - Step 5: Solve for x
x = 36,266,157,828.86/216,738.46 - Step 6: Final answer
x = 167,326.82
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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.