Finding the Fourth Proportional to 319,618.28, 479,302.86 and 119,829.68
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Solution
The fourth proportional to 319,618.28, 479,302.86 and 119,829.68 is: 179,697.82
Step by Step Solution
- Step 1: Write the proportion equation
319,618.28 : 479,302.86 = 119,829.68 : x - Step 2: Convert to fraction form
319,618.28/479,302.86 = 119,829.68/x - Step 3: Cross multiply
319,618.28x = 479,302.86 × 119,829.68 - Step 4: Simplify right side
319,618.28x = 57,434,708,336.88 - Step 5: Solve for x
x = 57,434,708,336.88/319,618.28 - Step 6: Final answer
x = 179,697.82
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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.