Finding the Fourth Proportional to 390,398.14, 538,750.88 and 227,093.84
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Solution
The fourth proportional to 390,398.14, 538,750.88 and 227,093.84 is: 313,390.34
Step by Step Solution
- Step 1: Write the proportion equation
390,398.14 : 538,750.88 = 227,093.84 : x - Step 2: Convert to fraction form
390,398.14/538,750.88 = 227,093.84/x - Step 3: Cross multiply
390,398.14x = 538,750.88 × 227,093.84 - Step 4: Simplify right side
390,398.14x = 122,347,004,016.56 - Step 5: Solve for x
x = 122,347,004,016.56/390,398.14 - Step 6: Final answer
x = 313,390.34
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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.