Finding the Fourth Proportional to 339,550.71, 509,547.21 and 129,190.47
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Solution
The fourth proportional to 339,550.71, 509,547.21 and 129,190.47 is: 193,869.85
Step by Step Solution
- Step 1: Write the proportion equation
339,550.71 : 509,547.21 = 129,190.47 : x - Step 2: Convert to fraction form
339,550.71/509,547.21 = 129,190.47/x - Step 3: Cross multiply
339,550.71x = 509,547.21 × 129,190.47 - Step 4: Simplify right side
339,550.71x = 65,828,643,547.09 - Step 5: Solve for x
x = 65,828,643,547.09/339,550.71 - Step 6: Final answer
x = 193,869.85
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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.