Finding the Fourth Proportional to 149,225.80, 223,838.70 and 129,785.80
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Solution
The fourth proportional to 149,225.80, 223,838.70 and 129,785.80 is: 194,678.70
Step by Step Solution
- Step 1: Write the proportion equation
149,225.80 : 223,838.70 = 129,785.80 : x - Step 2: Convert to fraction form
149,225.80/223,838.70 = 129,785.80/x - Step 3: Cross multiply
149,225.80x = 223,838.70 × 129,785.80 - Step 4: Simplify right side
149,225.80x = 29,051,084,750.46 - Step 5: Solve for x
x = 29,051,084,750.46/149,225.80 - Step 6: Final answer
x = 194,678.70
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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.