Finding the Fourth Proportional to 319,427.70, 440,825.67 and 176,187.30
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Solution
The fourth proportional to 319,427.70, 440,825.67 and 176,187.30 is: 243,146.99
Step by Step Solution
- Step 1: Write the proportion equation
319,427.70 : 440,825.67 = 176,187.30 : x - Step 2: Convert to fraction form
319,427.70/440,825.67 = 176,187.30/x - Step 3: Cross multiply
319,427.70x = 440,825.67 × 176,187.30 - Step 4: Simplify right side
319,427.70x = 77,667,884,567.99 - Step 5: Solve for x
x = 77,667,884,567.99/319,427.70 - Step 6: Final answer
x = 243,146.99
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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.