Finding the Fourth Proportional to 428,888.31, 591,885.19 and 237,901.65
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Solution
The fourth proportional to 428,888.31, 591,885.19 and 237,901.65 is: 328,314.99
Step by Step Solution
- Step 1: Write the proportion equation
428,888.31 : 591,885.19 = 237,901.65 : x - Step 2: Convert to fraction form
428,888.31/591,885.19 = 237,901.65/x - Step 3: Cross multiply
428,888.31x = 591,885.19 × 237,901.65 - Step 4: Simplify right side
428,888.31x = 140,810,463,311.56 - Step 5: Solve for x
x = 140,810,463,311.56/428,888.31 - Step 6: Final answer
x = 328,314.99
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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.