Finding the Fourth Proportional to 399,842.88, 599,754.76 and 129,970.68
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Solution
The fourth proportional to 399,842.88, 599,754.76 and 129,970.68 is: 194,952.91
Step by Step Solution
- Step 1: Write the proportion equation
399,842.88 : 599,754.76 = 129,970.68 : x - Step 2: Convert to fraction form
399,842.88/599,754.76 = 129,970.68/x - Step 3: Cross multiply
399,842.88x = 599,754.76 × 129,970.68 - Step 4: Simplify right side
399,842.88x = 77,950,533,990.44 - Step 5: Solve for x
x = 77,950,533,990.44/399,842.88 - Step 6: Final answer
x = 194,952.91
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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.