Finding the Fourth Proportional to 342,895.80, 514,343.70 and 143,149.80
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Solution
The fourth proportional to 342,895.80, 514,343.70 and 143,149.80 is: 214,724.70
Step by Step Solution
- Step 1: Write the proportion equation
342,895.80 : 514,343.70 = 143,149.80 : x - Step 2: Convert to fraction form
342,895.80/514,343.70 = 143,149.80/x - Step 3: Cross multiply
342,895.80x = 514,343.70 × 143,149.80 - Step 4: Simplify right side
342,895.80x = 73,628,197,786.26 - Step 5: Solve for x
x = 73,628,197,786.26/342,895.80 - Step 6: Final answer
x = 214,724.70
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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.