Finding the Fourth Proportional to 386,261.58, 533,031.75 and 214,178.70
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Solution
The fourth proportional to 386,261.58, 533,031.75 and 214,178.70 is: 295,561.49
Step by Step Solution
- Step 1: Write the proportion equation
386,261.58 : 533,031.75 = 214,178.70 : x - Step 2: Convert to fraction form
386,261.58/533,031.75 = 214,178.70/x - Step 3: Cross multiply
386,261.58x = 533,031.75 × 214,178.70 - Step 4: Simplify right side
386,261.58x = 114,164,047,273.73 - Step 5: Solve for x
x = 114,164,047,273.73/386,261.58 - Step 6: Final answer
x = 295,561.49
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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.