Finding the Fourth Proportional to 320,470.98, 442,305.42 and 193,146.68
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Solution
The fourth proportional to 320,470.98, 442,305.42 and 193,146.68 is: 266,575.85
Step by Step Solution
- Step 1: Write the proportion equation
320,470.98 : 442,305.42 = 193,146.68 : x - Step 2: Convert to fraction form
320,470.98/442,305.42 = 193,146.68/x - Step 3: Cross multiply
320,470.98x = 442,305.42 × 193,146.68 - Step 4: Simplify right side
320,470.98x = 85,429,823,419.01 - Step 5: Solve for x
x = 85,429,823,419.01/320,470.98 - Step 6: Final answer
x = 266,575.85
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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.