Finding the Fourth Proportional to 278,408.70, 384,204.99 and 151,084.26
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Solution
The fourth proportional to 278,408.70, 384,204.99 and 151,084.26 is: 208,496.81
Step by Step Solution
- Step 1: Write the proportion equation
278,408.70 : 384,204.99 = 151,084.26 : x - Step 2: Convert to fraction form
278,408.70/384,204.99 = 151,084.26/x - Step 3: Cross multiply
278,408.70x = 384,204.99 × 151,084.26 - Step 4: Simplify right side
278,408.70x = 58,047,326,602.46 - Step 5: Solve for x
x = 58,047,326,602.46/278,408.70 - Step 6: Final answer
x = 208,496.81
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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.