Finding the Fourth Proportional to 323,193.24, 484,815.78 and 86,533.92
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Solution
The fourth proportional to 323,193.24, 484,815.78 and 86,533.92 is: 129,807.82
Step by Step Solution
- Step 1: Write the proportion equation
323,193.24 : 484,815.78 = 86,533.92 : x - Step 2: Convert to fraction form
323,193.24/484,815.78 = 86,533.92/x - Step 3: Cross multiply
323,193.24x = 484,815.78 × 86,533.92 - Step 4: Simplify right side
323,193.24x = 41,953,009,921.26 - Step 5: Solve for x
x = 41,953,009,921.26/323,193.24 - Step 6: Final answer
x = 129,807.82
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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.