Finding the Fourth Proportional to 218,853.68, 302,018.08 and 118,251.68
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Solution
The fourth proportional to 218,853.68, 302,018.08 and 118,251.68 is: 163,187.32
Step by Step Solution
- Step 1: Write the proportion equation
218,853.68 : 302,018.08 = 118,251.68 : x - Step 2: Convert to fraction form
218,853.68/302,018.08 = 118,251.68/x - Step 3: Cross multiply
218,853.68x = 302,018.08 × 118,251.68 - Step 4: Simplify right side
218,853.68x = 35,714,145,350.37 - Step 5: Solve for x
x = 35,714,145,350.37/218,853.68 - Step 6: Final answer
x = 163,187.32
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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.