Finding the Fourth Proportional to 257,563.06, 355,439.96 and 142,843.98
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Solution
The fourth proportional to 257,563.06, 355,439.96 and 142,843.98 is: 197,126.32
Step by Step Solution
- Step 1: Write the proportion equation
257,563.06 : 355,439.96 = 142,843.98 : x - Step 2: Convert to fraction form
257,563.06/355,439.96 = 142,843.98/x - Step 3: Cross multiply
257,563.06x = 355,439.96 × 142,843.98 - Step 4: Simplify right side
257,563.06x = 50,772,458,537.44 - Step 5: Solve for x
x = 50,772,458,537.44/257,563.06 - Step 6: Final answer
x = 197,126.32
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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.