Finding the Fourth Proportional to 326,688.12, 450,828.18 and 190,815.48
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Solution
The fourth proportional to 326,688.12, 450,828.18 and 190,815.48 is: 263,324.53
Step by Step Solution
- Step 1: Write the proportion equation
326,688.12 : 450,828.18 = 190,815.48 : x - Step 2: Convert to fraction form
326,688.12/450,828.18 = 190,815.48/x - Step 3: Cross multiply
326,688.12x = 450,828.18 × 190,815.48 - Step 4: Simplify right side
326,688.12x = 86,024,995,564.23 - Step 5: Solve for x
x = 86,024,995,564.23/326,688.12 - Step 6: Final answer
x = 263,324.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.