Finding the Fourth Proportional to 426,533.23, 640,193.51 and 216,318.79
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Solution
The fourth proportional to 426,533.23, 640,193.51 and 216,318.79 is: 324,677.83
Step by Step Solution
- Step 1: Write the proportion equation
426,533.23 : 640,193.51 = 216,318.79 : x - Step 2: Convert to fraction form
426,533.23/640,193.51 = 216,318.79/x - Step 3: Cross multiply
426,533.23x = 640,193.51 × 216,318.79 - Step 4: Simplify right side
426,533.23x = 138,485,885,449.05 - Step 5: Solve for x
x = 138,485,885,449.05/426,533.23 - Step 6: Final answer
x = 324,677.83
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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.