Finding the Fourth Proportional to 485,437.54, 728,166.68 and 125,616.13
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Solution
The fourth proportional to 485,437.54, 728,166.68 and 125,616.13 is: 188,426.88
Step by Step Solution
- Step 1: Write the proportion equation
485,437.54 : 728,166.68 = 125,616.13 : x - Step 2: Convert to fraction form
485,437.54/728,166.68 = 125,616.13/x - Step 3: Cross multiply
485,437.54x = 728,166.68 × 125,616.13 - Step 4: Simplify right side
485,437.54x = 91,469,480,336.55 - Step 5: Solve for x
x = 91,469,480,336.55/485,437.54 - Step 6: Final answer
x = 188,426.88
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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.