Finding the Fourth Proportional to 216,432.40, 298,706.37 and 124,549.79
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Solution
The fourth proportional to 216,432.40, 298,706.37 and 124,549.79 is: 171,895.78
Step by Step Solution
- Step 1: Write the proportion equation
216,432.40 : 298,706.37 = 124,549.79 : x - Step 2: Convert to fraction form
216,432.40/298,706.37 = 124,549.79/x - Step 3: Cross multiply
216,432.40x = 298,706.37 × 124,549.79 - Step 4: Simplify right side
216,432.40x = 37,203,815,655.16 - Step 5: Solve for x
x = 37,203,815,655.16/216,432.40 - Step 6: Final answer
x = 171,895.78
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.