Finding the Fourth Proportional to 163,886.20, 245,829.30 and 141,335.80
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Solution
The fourth proportional to 163,886.20, 245,829.30 and 141,335.80 is: 212,003.70
Step by Step Solution
- Step 1: Write the proportion equation
163,886.20 : 245,829.30 = 141,335.80 : x - Step 2: Convert to fraction form
163,886.20/245,829.30 = 141,335.80/x - Step 3: Cross multiply
163,886.20x = 245,829.30 × 141,335.80 - Step 4: Simplify right side
163,886.20x = 34,744,480,778.94 - Step 5: Solve for x
x = 34,744,480,778.94/163,886.20 - Step 6: Final answer
x = 212,003.70
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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.