Finding the Fourth Proportional to 339,489.71, 509,345.10 and 161,973.75
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Solution
The fourth proportional to 339,489.71, 509,345.10 and 161,973.75 is: 243,013.37
Step by Step Solution
- Step 1: Write the proportion equation
339,489.71 : 509,345.10 = 161,973.75 : x - Step 2: Convert to fraction form
339,489.71/509,345.10 = 161,973.75/x - Step 3: Cross multiply
339,489.71x = 509,345.10 × 161,973.75 - Step 4: Simplify right side
339,489.71x = 82,500,535,891.13 - Step 5: Solve for x
x = 82,500,535,891.13/339,489.71 - Step 6: Final answer
x = 243,013.37
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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.