Finding the Fourth Proportional to 312,908.34, 469,155.11 and 113,202.75
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Solution
The fourth proportional to 312,908.34, 469,155.11 and 113,202.75 is: 169,729.09
Step by Step Solution
- Step 1: Write the proportion equation
312,908.34 : 469,155.11 = 113,202.75 : x - Step 2: Convert to fraction form
312,908.34/469,155.11 = 113,202.75/x - Step 3: Cross multiply
312,908.34x = 469,155.11 × 113,202.75 - Step 4: Simplify right side
312,908.34x = 53,109,648,062.54 - Step 5: Solve for x
x = 53,109,648,062.54/312,908.34 - Step 6: Final answer
x = 169,729.09
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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.