Finding the Fourth Proportional to 292,285.20, 438,427.80 and 283,537.20
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Solution
The fourth proportional to 292,285.20, 438,427.80 and 283,537.20 is: 425,305.80
Step by Step Solution
- Step 1: Write the proportion equation
292,285.20 : 438,427.80 = 283,537.20 : x - Step 2: Convert to fraction form
292,285.20/438,427.80 = 283,537.20/x - Step 3: Cross multiply
292,285.20x = 438,427.80 × 283,537.20 - Step 4: Simplify right side
292,285.20x = 124,310,590,814.16 - Step 5: Solve for x
x = 124,310,590,814.16/292,285.20 - Step 6: Final answer
x = 425,305.80
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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.