Finding the Fourth Proportional to 163,555.80, 245,333.70 and 135,907.80
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Solution
The fourth proportional to 163,555.80, 245,333.70 and 135,907.80 is: 203,861.70
Step by Step Solution
- Step 1: Write the proportion equation
163,555.80 : 245,333.70 = 135,907.80 : x - Step 2: Convert to fraction form
163,555.80/245,333.70 = 135,907.80/x - Step 3: Cross multiply
163,555.80x = 245,333.70 × 135,907.80 - Step 4: Simplify right side
163,555.80x = 33,342,763,432.86 - Step 5: Solve for x
x = 33,342,763,432.86/163,555.80 - Step 6: Final answer
x = 203,861.70
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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.