Finding the Fourth Proportional to 343,579.88, 515,402.63 and 106,859.00
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Solution
The fourth proportional to 343,579.88, 515,402.63 and 106,859.00 is: 160,298.70
Step by Step Solution
- Step 1: Write the proportion equation
343,579.88 : 515,402.63 = 106,859.00 : x - Step 2: Convert to fraction form
343,579.88/515,402.63 = 106,859.00/x - Step 3: Cross multiply
343,579.88x = 515,402.63 × 106,859.00 - Step 4: Simplify right side
343,579.88x = 55,075,406,527.86 - Step 5: Solve for x
x = 55,075,406,527.86/343,579.88 - Step 6: Final answer
x = 160,298.70
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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.