Finding the Fourth Proportional to 353,427.11, 487,722.68 and 196,257.74
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Solution
The fourth proportional to 353,427.11, 487,722.68 and 196,257.74 is: 270,831.95
Step by Step Solution
- Step 1: Write the proportion equation
353,427.11 : 487,722.68 = 196,257.74 : x - Step 2: Convert to fraction form
353,427.11/487,722.68 = 196,257.74/x - Step 3: Cross multiply
353,427.11x = 487,722.68 × 196,257.74 - Step 4: Simplify right side
353,427.11x = 95,719,350,923.54 - Step 5: Solve for x
x = 95,719,350,923.54/353,427.11 - Step 6: Final answer
x = 270,831.95
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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.