Finding the Fourth Proportional to 218,933.08, 302,128.18 and 118,331.08
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Solution
The fourth proportional to 218,933.08, 302,128.18 and 118,331.08 is: 163,297.18
Step by Step Solution
- Step 1: Write the proportion equation
218,933.08 : 302,128.18 = 118,331.08 : x - Step 2: Convert to fraction form
218,933.08/302,128.18 = 118,331.08/x - Step 3: Cross multiply
218,933.08x = 302,128.18 × 118,331.08 - Step 4: Simplify right side
218,933.08x = 35,751,153,837.83 - Step 5: Solve for x
x = 35,751,153,837.83/218,933.08 - Step 6: Final answer
x = 163,297.18
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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.