Finding the Fourth Proportional to 201,455.79, 278,009.06 and 110,811.93
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Solution
The fourth proportional to 201,455.79, 278,009.06 and 110,811.93 is: 152,920.50
Step by Step Solution
- Step 1: Write the proportion equation
201,455.79 : 278,009.06 = 110,811.93 : x - Step 2: Convert to fraction form
201,455.79/278,009.06 = 110,811.93/x - Step 3: Cross multiply
201,455.79x = 278,009.06 × 110,811.93 - Step 4: Simplify right side
201,455.79x = 30,806,719,942.03 - Step 5: Solve for x
x = 30,806,719,942.03/201,455.79 - Step 6: Final answer
x = 152,920.50
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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.