Finding the Fourth Proportional to 349,021.80, 523,532.70 and 99,703.80
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Solution
The fourth proportional to 349,021.80, 523,532.70 and 99,703.80 is: 149,555.70
Step by Step Solution
- Step 1: Write the proportion equation
349,021.80 : 523,532.70 = 99,703.80 : x - Step 2: Convert to fraction form
349,021.80/523,532.70 = 99,703.80/x - Step 3: Cross multiply
349,021.80x = 523,532.70 × 99,703.80 - Step 4: Simplify right side
349,021.80x = 52,198,199,614.26 - Step 5: Solve for x
x = 52,198,199,614.26/349,021.80 - Step 6: Final answer
x = 149,555.70
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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.