Finding the Fourth Proportional to 201,775.68, 278,446.99 and 111,140.13
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Solution
The fourth proportional to 201,775.68, 278,446.99 and 111,140.13 is: 153,371.48
Step by Step Solution
- Step 1: Write the proportion equation
201,775.68 : 278,446.99 = 111,140.13 : x - Step 2: Convert to fraction form
201,775.68/278,446.99 = 111,140.13/x - Step 3: Cross multiply
201,775.68x = 278,446.99 × 111,140.13 - Step 4: Simplify right side
201,775.68x = 30,946,634,666.71 - Step 5: Solve for x
x = 30,946,634,666.71/201,775.68 - Step 6: Final answer
x = 153,371.48
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.