Finding the Fourth Proportional to 191,378.58, 286,739.81 and 135,118.00
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Solution
The fourth proportional to 191,378.58, 286,739.81 and 135,118.00 is: 202,445.39
Step by Step Solution
- Step 1: Write the proportion equation
191,378.58 : 286,739.81 = 135,118.00 : x - Step 2: Convert to fraction form
191,378.58/286,739.81 = 135,118.00/x - Step 3: Cross multiply
191,378.58x = 286,739.81 × 135,118.00 - Step 4: Simplify right side
191,378.58x = 38,743,709,837.11 - Step 5: Solve for x
x = 38,743,709,837.11/191,378.58 - Step 6: Final answer
x = 202,445.39
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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.