Finding the Fourth Proportional to 322,497.20, 483,745.80 and 97,857.20
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Solution
The fourth proportional to 322,497.20, 483,745.80 and 97,857.20 is: 146,785.80
Step by Step Solution
- Step 1: Write the proportion equation
322,497.20 : 483,745.80 = 97,857.20 : x - Step 2: Convert to fraction form
322,497.20/483,745.80 = 97,857.20/x - Step 3: Cross multiply
322,497.20x = 483,745.80 × 97,857.20 - Step 4: Simplify right side
322,497.20x = 47,338,009,499.76 - Step 5: Solve for x
x = 47,338,009,499.76/322,497.20 - Step 6: Final answer
x = 146,785.80
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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.