Finding the Fourth Proportional to 399,681.24, 600,284.88 and 231,539.28
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Solution
The fourth proportional to 399,681.24, 600,284.88 and 231,539.28 is: 347,750.95
Step by Step Solution
- Step 1: Write the proportion equation
399,681.24 : 600,284.88 = 231,539.28 : x - Step 2: Convert to fraction form
399,681.24/600,284.88 = 231,539.28/x - Step 3: Cross multiply
399,681.24x = 600,284.88 × 231,539.28 - Step 4: Simplify right side
399,681.24x = 138,989,528,910.09 - Step 5: Solve for x
x = 138,989,528,910.09/399,681.24 - Step 6: Final answer
x = 347,750.95
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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.