Finding the Fourth Proportional to 228,791.21, 343,306.47 and 166,128.95
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Solution
The fourth proportional to 228,791.21, 343,306.47 and 166,128.95 is: 249,280.31
Step by Step Solution
- Step 1: Write the proportion equation
228,791.21 : 343,306.47 = 166,128.95 : x - Step 2: Convert to fraction form
228,791.21/343,306.47 = 166,128.95/x - Step 3: Cross multiply
228,791.21x = 343,306.47 × 166,128.95 - Step 4: Simplify right side
228,791.21x = 57,033,143,389.31 - Step 5: Solve for x
x = 57,033,143,389.31/228,791.21 - Step 6: Final answer
x = 249,280.31
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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.