Finding the Fourth Proportional to 368,794.80, 553,170.33 and 128,891.84
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Solution
The fourth proportional to 368,794.80, 553,170.33 and 128,891.84 is: 193,330.11
Step by Step Solution
- Step 1: Write the proportion equation
368,794.80 : 553,170.33 = 128,891.84 : x - Step 2: Convert to fraction form
368,794.80/553,170.33 = 128,891.84/x - Step 3: Cross multiply
368,794.80x = 553,170.33 × 128,891.84 - Step 4: Simplify right side
368,794.80x = 71,299,138,901.26 - Step 5: Solve for x
x = 71,299,138,901.26/368,794.80 - Step 6: Final answer
x = 193,330.11
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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.