Finding the Fourth Proportional to 383,313.48, 528,973.44 and 213,553.68
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Solution
The fourth proportional to 383,313.48, 528,973.44 and 213,553.68 is: 294,704.55
Step by Step Solution
- Step 1: Write the proportion equation
383,313.48 : 528,973.44 = 213,553.68 : x - Step 2: Convert to fraction form
383,313.48/528,973.44 = 213,553.68/x - Step 3: Cross multiply
383,313.48x = 528,973.44 × 213,553.68 - Step 4: Simplify right side
383,313.48x = 112,964,224,734.26 - Step 5: Solve for x
x = 112,964,224,734.26/383,313.48 - Step 6: Final answer
x = 294,704.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.