Finding the Fourth Proportional to 193,437.36, 289,980.96 and 68,749.20
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Solution
The fourth proportional to 193,437.36, 289,980.96 and 68,749.20 is: 103,061.58
Step by Step Solution
- Step 1: Write the proportion equation
193,437.36 : 289,980.96 = 68,749.20 : x - Step 2: Convert to fraction form
193,437.36/289,980.96 = 68,749.20/x - Step 3: Cross multiply
193,437.36x = 289,980.96 × 68,749.20 - Step 4: Simplify right side
193,437.36x = 19,935,959,015.23 - Step 5: Solve for x
x = 19,935,959,015.23/193,437.36 - Step 6: Final answer
x = 103,061.58
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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.