Finding the Fourth Proportional to 400,988.14, 553,342.47 and 228,899.26
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Solution
The fourth proportional to 400,988.14, 553,342.47 and 228,899.26 is: 315,868.90
Step by Step Solution
- Step 1: Write the proportion equation
400,988.14 : 553,342.47 = 228,899.26 : x - Step 2: Convert to fraction form
400,988.14/553,342.47 = 228,899.26/x - Step 3: Cross multiply
400,988.14x = 553,342.47 × 228,899.26 - Step 4: Simplify right side
400,988.14x = 126,659,681,742.88 - Step 5: Solve for x
x = 126,659,681,742.88/400,988.14 - Step 6: Final answer
x = 315,868.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.