Finding the Fourth Proportional to 210,009.70, 315,014.55 and 201,261.70
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Solution
The fourth proportional to 210,009.70, 315,014.55 and 201,261.70 is: 301,892.55
Step by Step Solution
- Step 1: Write the proportion equation
210,009.70 : 315,014.55 = 201,261.70 : x - Step 2: Convert to fraction form
210,009.70/315,014.55 = 201,261.70/x - Step 3: Cross multiply
210,009.70x = 315,014.55 × 201,261.70 - Step 4: Simplify right side
210,009.70x = 63,400,363,857.74 - Step 5: Solve for x
x = 63,400,363,857.74/210,009.70 - Step 6: Final answer
x = 301,892.55
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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.