Finding the Fourth Proportional to 339,932.25, 509,909.18 and 103,276.99
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Solution
The fourth proportional to 339,932.25, 509,909.18 and 103,276.99 is: 154,918.77
Step by Step Solution
- Step 1: Write the proportion equation
339,932.25 : 509,909.18 = 103,276.99 : x - Step 2: Convert to fraction form
339,932.25/509,909.18 = 103,276.99/x - Step 3: Cross multiply
339,932.25x = 509,909.18 × 103,276.99 - Step 4: Simplify right side
339,932.25x = 52,661,884,767.38 - Step 5: Solve for x
x = 52,661,884,767.38/339,932.25 - Step 6: Final answer
x = 154,918.77
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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.