Finding the Fourth Proportional to 229,215.70, 343,823.55 and 130,911.70
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Solution
The fourth proportional to 229,215.70, 343,823.55 and 130,911.70 is: 196,367.55
Step by Step Solution
- Step 1: Write the proportion equation
229,215.70 : 343,823.55 = 130,911.70 : x - Step 2: Convert to fraction form
229,215.70/343,823.55 = 130,911.70/x - Step 3: Cross multiply
229,215.70x = 343,823.55 × 130,911.70 - Step 4: Simplify right side
229,215.70x = 45,010,525,430.54 - Step 5: Solve for x
x = 45,010,525,430.54/229,215.70 - Step 6: Final answer
x = 196,367.55
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1.5x scale
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.