Finding the Fourth Proportional to 294,772.80, 442,161.12 and 107,707.20
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Solution
The fourth proportional to 294,772.80, 442,161.12 and 107,707.20 is: 161,561.50
Step by Step Solution
- Step 1: Write the proportion equation
294,772.80 : 442,161.12 = 107,707.20 : x - Step 2: Convert to fraction form
294,772.80/442,161.12 = 107,707.20/x - Step 3: Cross multiply
294,772.80x = 442,161.12 × 107,707.20 - Step 4: Simplify right side
294,772.80x = 47,623,936,184.06 - Step 5: Solve for x
x = 47,623,936,184.06/294,772.80 - Step 6: Final answer
x = 161,561.50
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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.