Finding the Fourth Proportional to 386,811.05, 533,800.13 and 214,731.54
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Solution
The fourth proportional to 386,811.05, 533,800.13 and 214,731.54 is: 296,330.02
Step by Step Solution
- Step 1: Write the proportion equation
386,811.05 : 533,800.13 = 214,731.54 : x - Step 2: Convert to fraction form
386,811.05/533,800.13 = 214,731.54/x - Step 3: Cross multiply
386,811.05x = 533,800.13 × 214,731.54 - Step 4: Simplify right side
386,811.05x = 114,623,722,893.44 - Step 5: Solve for x
x = 114,623,722,893.44/386,811.05 - Step 6: Final answer
x = 296,330.02
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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.