Finding the Fourth Proportional to 398,947.58, 598,106.28 and 199,157.84
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Solution
The fourth proportional to 398,947.58, 598,106.28 and 199,157.84 is: 298,579.46
Step by Step Solution
- Step 1: Write the proportion equation
398,947.58 : 598,106.28 = 199,157.84 : x - Step 2: Convert to fraction form
398,947.58/598,106.28 = 199,157.84/x - Step 3: Cross multiply
398,947.58x = 598,106.28 × 199,157.84 - Step 4: Simplify right side
398,947.58x = 119,117,554,815.24 - Step 5: Solve for x
x = 119,117,554,815.24/398,947.58 - Step 6: Final answer
x = 298,579.46
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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.