Finding the Fourth Proportional to 221,055.08, 331,619.36 and 87,936.62
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Solution
The fourth proportional to 221,055.08, 331,619.36 and 87,936.62 is: 131,919.54
Step by Step Solution
- Step 1: Write the proportion equation
221,055.08 : 331,619.36 = 87,936.62 : x - Step 2: Convert to fraction form
221,055.08/331,619.36 = 87,936.62/x - Step 3: Cross multiply
221,055.08x = 331,619.36 × 87,936.62 - Step 4: Simplify right side
221,055.08x = 29,161,483,547.18 - Step 5: Solve for x
x = 29,161,483,547.18/221,055.08 - Step 6: Final answer
x = 131,919.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.