Finding the Fourth Proportional to 218,635.98, 301,733.34 and 121,846.35
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Solution
The fourth proportional to 218,635.98, 301,733.34 and 121,846.35 is: 168,156.71
Step by Step Solution
- Step 1: Write the proportion equation
218,635.98 : 301,733.34 = 121,846.35 : x - Step 2: Convert to fraction form
218,635.98/301,733.34 = 121,846.35/x - Step 3: Cross multiply
218,635.98x = 301,733.34 × 121,846.35 - Step 4: Simplify right side
218,635.98x = 36,765,106,152.31 - Step 5: Solve for x
x = 36,765,106,152.31/218,635.98 - Step 6: Final answer
x = 168,156.71
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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.