Finding the Fourth Proportional to 438,644.80, 657,092.40 and 251,437.60
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Solution
The fourth proportional to 438,644.80, 657,092.40 and 251,437.60 is: 376,654.95
Step by Step Solution
- Step 1: Write the proportion equation
438,644.80 : 657,092.40 = 251,437.60 : x - Step 2: Convert to fraction form
438,644.80/657,092.40 = 251,437.60/x - Step 3: Cross multiply
438,644.80x = 657,092.40 × 251,437.60 - Step 4: Simplify right side
438,644.80x = 165,217,736,034.24 - Step 5: Solve for x
x = 165,217,736,034.24/438,644.80 - Step 6: Final answer
x = 376,654.95
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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.