Finding the Fourth Proportional to 115,803.28, 158,349.28 and 115,803.28
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Solution
The fourth proportional to 115,803.28, 158,349.28 and 115,803.28 is: 158,349.28
Step by Step Solution
- Step 1: Write the proportion equation
115,803.28 : 158,349.28 = 115,803.28 : x - Step 2: Convert to fraction form
115,803.28/158,349.28 = 115,803.28/x - Step 3: Cross multiply
115,803.28x = 158,349.28 × 115,803.28 - Step 4: Simplify right side
115,803.28x = 18,337,365,430.62 - Step 5: Solve for x
x = 18,337,365,430.62/115,803.28 - Step 6: Final answer
x = 158,349.28
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.