Finding the Fourth Proportional to 323,372.51, 485,036.18 and 120,930.09
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Solution
The fourth proportional to 323,372.51, 485,036.18 and 120,930.09 is: 181,386.69
Step by Step Solution
- Step 1: Write the proportion equation
323,372.51 : 485,036.18 = 120,930.09 : x - Step 2: Convert to fraction form
323,372.51/485,036.18 = 120,930.09/x - Step 3: Cross multiply
323,372.51x = 485,036.18 × 120,930.09 - Step 4: Simplify right side
323,372.51x = 58,655,468,900.66 - Step 5: Solve for x
x = 58,655,468,900.66/323,372.51 - Step 6: Final answer
x = 181,386.69
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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.