Finding the Fourth Proportional to 312,474.06, 431,214.08 and 169,234.11
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Solution
The fourth proportional to 312,474.06, 431,214.08 and 169,234.11 is: 233,543.00
Step by Step Solution
- Step 1: Write the proportion equation
312,474.06 : 431,214.08 = 169,234.11 : x - Step 2: Convert to fraction form
312,474.06/431,214.08 = 169,234.11/x - Step 3: Cross multiply
312,474.06x = 431,214.08 × 169,234.11 - Step 4: Simplify right side
312,474.06x = 72,976,130,202.10 - Step 5: Solve for x
x = 72,976,130,202.10/312,474.06 - Step 6: Final answer
x = 233,543.00
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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.