Finding the Fourth Proportional to 221,697.99, 332,554.14 and 86,756.76
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Solution
The fourth proportional to 221,697.99, 332,554.14 and 86,756.76 is: 130,137.94
Step by Step Solution
- Step 1: Write the proportion equation
221,697.99 : 332,554.14 = 86,756.76 : x - Step 2: Convert to fraction form
221,697.99/332,554.14 = 86,756.76/x - Step 3: Cross multiply
221,697.99x = 332,554.14 × 86,756.76 - Step 4: Simplify right side
221,697.99x = 28,851,319,710.99 - Step 5: Solve for x
x = 28,851,319,710.99/221,697.99 - Step 6: Final answer
x = 130,137.94
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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.