Finding the Fourth Proportional to 221,267.25, 331,937.79 and 71,489.88
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Solution
The fourth proportional to 221,267.25, 331,937.79 and 71,489.88 is: 107,246.75
Step by Step Solution
- Step 1: Write the proportion equation
221,267.25 : 331,937.79 = 71,489.88 : x - Step 2: Convert to fraction form
221,267.25/331,937.79 = 71,489.88/x - Step 3: Cross multiply
221,267.25x = 331,937.79 × 71,489.88 - Step 4: Simplify right side
221,267.25x = 23,730,192,774.57 - Step 5: Solve for x
x = 23,730,192,774.57/221,267.25 - Step 6: Final answer
x = 107,246.75
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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.