Finding the Fourth Proportional to 292,424.40, 438,678.44 and 90,037.63
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Solution
The fourth proportional to 292,424.40, 438,678.44 and 90,037.63 is: 135,069.33
Step by Step Solution
- Step 1: Write the proportion equation
292,424.40 : 438,678.44 = 90,037.63 : x - Step 2: Convert to fraction form
292,424.40/438,678.44 = 90,037.63/x - Step 3: Cross multiply
292,424.40x = 438,678.44 × 90,037.63 - Step 4: Simplify right side
292,424.40x = 39,497,567,843.14 - Step 5: Solve for x
x = 39,497,567,843.14/292,424.40 - Step 6: Final answer
x = 135,069.33
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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.