Finding the Fourth Proportional to 190,847.06, 286,412.74 and 72,749.06
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Solution
The fourth proportional to 190,847.06, 286,412.74 and 72,749.06 is: 109,177.78
Step by Step Solution
- Step 1: Write the proportion equation
190,847.06 : 286,412.74 = 72,749.06 : x - Step 2: Convert to fraction form
190,847.06/286,412.74 = 72,749.06/x - Step 3: Cross multiply
190,847.06x = 286,412.74 × 72,749.06 - Step 4: Simplify right side
190,847.06x = 20,836,257,607.02 - Step 5: Solve for x
x = 20,836,257,607.02/190,847.06 - Step 6: Final answer
x = 109,177.78
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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.