Finding the Fourth Proportional to 163,977.20, 245,965.80 and 149,202.80
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Solution
The fourth proportional to 163,977.20, 245,965.80 and 149,202.80 is: 223,804.20
Step by Step Solution
- Step 1: Write the proportion equation
163,977.20 : 245,965.80 = 149,202.80 : x - Step 2: Convert to fraction form
163,977.20/245,965.80 = 149,202.80/x - Step 3: Cross multiply
163,977.20x = 245,965.80 × 149,202.80 - Step 4: Simplify right side
163,977.20x = 36,698,786,064.24 - Step 5: Solve for x
x = 36,698,786,064.24/163,977.20 - Step 6: Final answer
x = 223,804.20
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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.