Finding the Fourth Proportional to 218,863.62, 302,031.99 and 118,261.62
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Solution
The fourth proportional to 218,863.62, 302,031.99 and 118,261.62 is: 163,201.14
Step by Step Solution
- Step 1: Write the proportion equation
218,863.62 : 302,031.99 = 118,261.62 : x - Step 2: Convert to fraction form
218,863.62/302,031.99 = 118,261.62/x - Step 3: Cross multiply
218,863.62x = 302,031.99 × 118,261.62 - Step 4: Simplify right side
218,863.62x = 35,718,792,429.22 - Step 5: Solve for x
x = 35,718,792,429.22/218,863.62 - Step 6: Final answer
x = 163,201.14
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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.