Finding the Fourth Proportional to 312,279.39, 430,945.80 and 169,038.99
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Solution
The fourth proportional to 312,279.39, 430,945.80 and 169,038.99 is: 233,273.94
Step by Step Solution
- Step 1: Write the proportion equation
312,279.39 : 430,945.80 = 169,038.99 : x - Step 2: Convert to fraction form
312,279.39/430,945.80 = 169,038.99/x - Step 3: Cross multiply
312,279.39x = 430,945.80 × 169,038.99 - Step 4: Simplify right side
312,279.39x = 72,846,642,776.74 - Step 5: Solve for x
x = 72,846,642,776.74/312,279.39 - Step 6: Final answer
x = 233,273.94
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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.