Finding the Fourth Proportional to 129,244.30, 193,866.76 and 39,287.84
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Solution
The fourth proportional to 129,244.30, 193,866.76 and 39,287.84 is: 58,931.85
Step by Step Solution
- Step 1: Write the proportion equation
129,244.30 : 193,866.76 = 39,287.84 : x - Step 2: Convert to fraction form
129,244.30/193,866.76 = 39,287.84/x - Step 3: Cross multiply
129,244.30x = 193,866.76 × 39,287.84 - Step 4: Simplify right side
129,244.30x = 7,616,606,248.20 - Step 5: Solve for x
x = 7,616,606,248.20/129,244.30 - Step 6: Final answer
x = 58,931.85
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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.