Finding the Fourth Proportional to 319,615.28, 479,298.36 and 119,826.68
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Solution
The fourth proportional to 319,615.28, 479,298.36 and 119,826.68 is: 179,693.32
Step by Step Solution
- Step 1: Write the proportion equation
319,615.28 : 479,298.36 = 119,826.68 : x - Step 2: Convert to fraction form
319,615.28/479,298.36 = 119,826.68/x - Step 3: Cross multiply
319,615.28x = 479,298.36 × 119,826.68 - Step 4: Simplify right side
319,615.28x = 57,432,731,208.24 - Step 5: Solve for x
x = 57,432,731,208.24/319,615.28 - Step 6: Final answer
x = 179,693.32
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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.