Finding the Fourth Proportional to 190,698.68, 286,038.72 and 70,778.96
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Solution
The fourth proportional to 190,698.68, 286,038.72 and 70,778.96 is: 106,164.99
Step by Step Solution
- Step 1: Write the proportion equation
190,698.68 : 286,038.72 = 70,778.96 : x - Step 2: Convert to fraction form
190,698.68/286,038.72 = 70,778.96/x - Step 3: Cross multiply
190,698.68x = 286,038.72 × 70,778.96 - Step 4: Simplify right side
190,698.68x = 20,245,524,173.68 - Step 5: Solve for x
x = 20,245,524,173.68/190,698.68 - Step 6: Final answer
x = 106,164.99
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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.