Finding the Fourth Proportional to 294,742.80, 442,114.20 and 107,827.20
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Solution
The fourth proportional to 294,742.80, 442,114.20 and 107,827.20 is: 161,740.80
Step by Step Solution
- Step 1: Write the proportion equation
294,742.80 : 442,114.20 = 107,827.20 : x - Step 2: Convert to fraction form
294,742.80/442,114.20 = 107,827.20/x - Step 3: Cross multiply
294,742.80x = 442,114.20 × 107,827.20 - Step 4: Simplify right side
294,742.80x = 47,671,936,266.24 - Step 5: Solve for x
x = 47,671,936,266.24/294,742.80 - Step 6: Final answer
x = 161,740.80
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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.