Finding the Fourth Proportional to 218,914.75, 302,102.40 and 118,312.75
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Solution
The fourth proportional to 218,914.75, 302,102.40 and 118,312.75 is: 163,271.62
Step by Step Solution
- Step 1: Write the proportion equation
218,914.75 : 302,102.40 = 118,312.75 : x - Step 2: Convert to fraction form
218,914.75/302,102.40 = 118,312.75/x - Step 3: Cross multiply
218,914.75x = 302,102.40 × 118,312.75 - Step 4: Simplify right side
218,914.75x = 35,742,565,725.60 - Step 5: Solve for x
x = 35,742,565,725.60/218,914.75 - Step 6: Final answer
x = 163,271.62
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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.