Finding the Fourth Proportional to 338,966.77, 508,250.81 and 128,619.49
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Solution
The fourth proportional to 338,966.77, 508,250.81 and 128,619.49 is: 192,853.59
Step by Step Solution
- Step 1: Write the proportion equation
338,966.77 : 508,250.81 = 128,619.49 : x - Step 2: Convert to fraction form
338,966.77/508,250.81 = 128,619.49/x - Step 3: Cross multiply
338,966.77x = 508,250.81 × 128,619.49 - Step 4: Simplify right side
338,966.77x = 65,370,959,331.19 - Step 5: Solve for x
x = 65,370,959,331.19/338,966.77 - Step 6: Final answer
x = 192,853.59
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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.