Finding the Fourth Proportional to 180,408.36, 248,959.80 and 99,831.05
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Solution
The fourth proportional to 180,408.36, 248,959.80 and 99,831.05 is: 137,764.77
Step by Step Solution
- Step 1: Write the proportion equation
180,408.36 : 248,959.80 = 99,831.05 : x - Step 2: Convert to fraction form
180,408.36/248,959.80 = 99,831.05/x - Step 3: Cross multiply
180,408.36x = 248,959.80 × 99,831.05 - Step 4: Simplify right side
180,408.36x = 24,853,916,996.99 - Step 5: Solve for x
x = 24,853,916,996.99/180,408.36 - Step 6: Final answer
x = 137,764.77
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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.