Finding the Fourth Proportional to 257,511.08, 355,376.62 and 142,782.42
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Solution
The fourth proportional to 257,511.08, 355,376.62 and 142,782.42 is: 197,046.02
Step by Step Solution
- Step 1: Write the proportion equation
257,511.08 : 355,376.62 = 142,782.42 : x - Step 2: Convert to fraction form
257,511.08/355,376.62 = 142,782.42/x - Step 3: Cross multiply
257,511.08x = 355,376.62 × 142,782.42 - Step 4: Simplify right side
257,511.08x = 50,741,533,815.02 - Step 5: Solve for x
x = 50,741,533,815.02/257,511.08 - Step 6: Final answer
x = 197,046.02
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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.