Finding the Fourth Proportional to 216,506.80, 324,811.40 and 68,762.80
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Solution
The fourth proportional to 216,506.80, 324,811.40 and 68,762.80 is: 103,160.46
Step by Step Solution
- Step 1: Write the proportion equation
216,506.80 : 324,811.40 = 68,762.80 : x - Step 2: Convert to fraction form
216,506.80/324,811.40 = 68,762.80/x - Step 3: Cross multiply
216,506.80x = 324,811.40 × 68,762.80 - Step 4: Simplify right side
216,506.80x = 22,334,941,335.92 - Step 5: Solve for x
x = 22,334,941,335.92/216,506.80 - Step 6: Final answer
x = 103,160.46
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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.