Finding the Fourth Proportional to 278,027.28, 383,683.44 and 157,161.36
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Solution
The fourth proportional to 278,027.28, 383,683.44 and 157,161.36 is: 216,885.95
Step by Step Solution
- Step 1: Write the proportion equation
278,027.28 : 383,683.44 = 157,161.36 : x - Step 2: Convert to fraction form
278,027.28/383,683.44 = 157,161.36/x - Step 3: Cross multiply
278,027.28x = 383,683.44 × 157,161.36 - Step 4: Simplify right side
278,027.28x = 60,300,211,239.88 - Step 5: Solve for x
x = 60,300,211,239.88/278,027.28 - Step 6: Final answer
x = 216,885.95
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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.