Finding the Fourth Proportional to 257,552.10, 355,433.39 and 142,823.02
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Solution
The fourth proportional to 257,552.10, 355,433.39 and 142,823.02 is: 197,102.14
Step by Step Solution
- Step 1: Write the proportion equation
257,552.10 : 355,433.39 = 142,823.02 : x - Step 2: Convert to fraction form
257,552.10/355,433.39 = 142,823.02/x - Step 3: Cross multiply
257,552.10x = 355,433.39 × 142,823.02 - Step 4: Simplify right side
257,552.10x = 50,764,070,168.64 - Step 5: Solve for x
x = 50,764,070,168.64/257,552.10 - Step 6: Final answer
x = 197,102.14
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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.