Finding the Fourth Proportional to 187,201.80, 280,802.70 and 74,935.80
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Solution
The fourth proportional to 187,201.80, 280,802.70 and 74,935.80 is: 112,403.70
Step by Step Solution
- Step 1: Write the proportion equation
187,201.80 : 280,802.70 = 74,935.80 : x - Step 2: Convert to fraction form
187,201.80/280,802.70 = 74,935.80/x - Step 3: Cross multiply
187,201.80x = 280,802.70 × 74,935.80 - Step 4: Simplify right side
187,201.80x = 21,042,174,966.66 - Step 5: Solve for x
x = 21,042,174,966.66/187,201.80 - Step 6: Final answer
x = 112,403.70
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1.5x scale
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.