Finding the Fourth Proportional to 149,739.80, 224,609.70 and 120,215.30
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Solution
The fourth proportional to 149,739.80, 224,609.70 and 120,215.30 is: 180,322.95
Step by Step Solution
- Step 1: Write the proportion equation
149,739.80 : 224,609.70 = 120,215.30 : x - Step 2: Convert to fraction form
149,739.80/224,609.70 = 120,215.30/x - Step 3: Cross multiply
149,739.80x = 224,609.70 × 120,215.30 - Step 4: Simplify right side
149,739.80x = 27,001,522,468.41 - Step 5: Solve for x
x = 27,001,522,468.41/149,739.80 - Step 6: Final answer
x = 180,322.95
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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.