Finding the Fourth Proportional to 320,889.66, 442,831.26 and 177,652.08
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Solution
The fourth proportional to 320,889.66, 442,831.26 and 177,652.08 is: 245,161.82
Step by Step Solution
- Step 1: Write the proportion equation
320,889.66 : 442,831.26 = 177,652.08 : x - Step 2: Convert to fraction form
320,889.66/442,831.26 = 177,652.08/x - Step 3: Cross multiply
320,889.66x = 442,831.26 × 177,652.08 - Step 4: Simplify right side
320,889.66x = 78,669,894,428.02 - Step 5: Solve for x
x = 78,669,894,428.02/320,889.66 - Step 6: Final answer
x = 245,161.82
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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.