Finding the Fourth Proportional to 210,007.70, 315,011.55 and 201,259.70
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Solution
The fourth proportional to 210,007.70, 315,011.55 and 201,259.70 is: 301,889.55
Step by Step Solution
- Step 1: Write the proportion equation
210,007.70 : 315,011.55 = 201,259.70 : x - Step 2: Convert to fraction form
210,007.70/315,011.55 = 201,259.70/x - Step 3: Cross multiply
210,007.70x = 315,011.55 × 201,259.70 - Step 4: Simplify right side
210,007.70x = 63,399,130,049.54 - Step 5: Solve for x
x = 63,399,130,049.54/210,007.70 - Step 6: Final answer
x = 301,889.55
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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.