Finding the Fourth Proportional to 319,456.76, 479,134.34 and 106,206.95
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Solution
The fourth proportional to 319,456.76, 479,134.34 and 106,206.95 is: 159,293.53
Step by Step Solution
- Step 1: Write the proportion equation
319,456.76 : 479,134.34 = 106,206.95 : x - Step 2: Convert to fraction form
319,456.76/479,134.34 = 106,206.95/x - Step 3: Cross multiply
319,456.76x = 479,134.34 × 106,206.95 - Step 4: Simplify right side
319,456.76x = 50,887,395,561.07 - Step 5: Solve for x
x = 50,887,395,561.07/319,456.76 - Step 6: Final answer
x = 159,293.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.