Finding the Fourth Proportional to 311,513.53, 467,263.57 and 86,867.99
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Solution
The fourth proportional to 311,513.53, 467,263.57 and 86,867.99 is: 130,300.10
Step by Step Solution
- Step 1: Write the proportion equation
311,513.53 : 467,263.57 = 86,867.99 : x - Step 2: Convert to fraction form
311,513.53/467,263.57 = 86,867.99/x - Step 3: Cross multiply
311,513.53x = 467,263.57 × 86,867.99 - Step 4: Simplify right side
311,513.53x = 40,590,244,789.81 - Step 5: Solve for x
x = 40,590,244,789.81/311,513.53 - Step 6: Final answer
x = 130,300.10
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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.