Finding the Fourth Proportional to 257,636.08, 355,503.96 and 142,913.44
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Solution
The fourth proportional to 257,636.08, 355,503.96 and 142,913.44 is: 197,201.78
Step by Step Solution
- Step 1: Write the proportion equation
257,636.08 : 355,503.96 = 142,913.44 : x - Step 2: Convert to fraction form
257,636.08/355,503.96 = 142,913.44/x - Step 3: Cross multiply
257,636.08x = 355,503.96 × 142,913.44 - Step 4: Simplify right side
257,636.08x = 50,806,293,857.22 - Step 5: Solve for x
x = 50,806,293,857.22/257,636.08 - Step 6: Final answer
x = 197,201.78
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1.5x scale
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.