Finding the Fourth Proportional to 210,220.02, 315,142.49 and 77,069.19
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Solution
The fourth proportional to 210,220.02, 315,142.49 and 77,069.19 is: 115,535.03
Step by Step Solution
- Step 1: Write the proportion equation
210,220.02 : 315,142.49 = 77,069.19 : x - Step 2: Convert to fraction form
210,220.02/315,142.49 = 77,069.19/x - Step 3: Cross multiply
210,220.02x = 315,142.49 × 77,069.19 - Step 4: Simplify right side
210,220.02x = 24,287,776,631.56 - Step 5: Solve for x
x = 24,287,776,631.56/210,220.02 - Step 6: Final answer
x = 115,535.03
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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.