Finding the Fourth Proportional to 257,731.36, 354,408.06 and 223,680.70
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Solution
The fourth proportional to 257,731.36, 354,408.06 and 223,680.70 is: 307,584.78
Step by Step Solution
- Step 1: Write the proportion equation
257,731.36 : 354,408.06 = 223,680.70 : x - Step 2: Convert to fraction form
257,731.36/354,408.06 = 223,680.70/x - Step 3: Cross multiply
257,731.36x = 354,408.06 × 223,680.70 - Step 4: Simplify right side
257,731.36x = 79,274,242,946.44 - Step 5: Solve for x
x = 79,274,242,946.44/257,731.36 - Step 6: Final answer
x = 307,584.78
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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.