Finding the Fourth Proportional to 430,621.41, 646,169.96 and 177,843.09
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Solution
The fourth proportional to 430,621.41, 646,169.96 and 177,843.09 is: 266,862.87
Step by Step Solution
- Step 1: Write the proportion equation
430,621.41 : 646,169.96 = 177,843.09 : x - Step 2: Convert to fraction form
430,621.41/646,169.96 = 177,843.09/x - Step 3: Cross multiply
430,621.41x = 646,169.96 × 177,843.09 - Step 4: Simplify right side
430,621.41x = 114,916,864,218.95 - Step 5: Solve for x
x = 114,916,864,218.95/430,621.41 - Step 6: Final answer
x = 266,862.87
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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.