Finding the Fourth Proportional to 369,177.97, 509,465.81 and 199,412.09
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Solution
The fourth proportional to 369,177.97, 509,465.81 and 199,412.09 is: 275,188.80
Step by Step Solution
- Step 1: Write the proportion equation
369,177.97 : 509,465.81 = 199,412.09 : x - Step 2: Convert to fraction form
369,177.97/509,465.81 = 199,412.09/x - Step 3: Cross multiply
369,177.97x = 509,465.81 × 199,412.09 - Step 4: Simplify right side
369,177.97x = 101,593,641,955.64 - Step 5: Solve for x
x = 101,593,641,955.64/369,177.97 - Step 6: Final answer
x = 275,188.80
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1.5x scale
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.