Finding the Fourth Proportional to 353,407.20, 487,713.60 and 202,533.12
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Solution
The fourth proportional to 353,407.20, 487,713.60 and 202,533.12 is: 279,502.39
Step by Step Solution
- Step 1: Write the proportion equation
353,407.20 : 487,713.60 = 202,533.12 : x - Step 2: Convert to fraction form
353,407.20/487,713.60 = 202,533.12/x - Step 3: Cross multiply
353,407.20x = 487,713.60 × 202,533.12 - Step 4: Simplify right side
353,407.20x = 98,778,157,074.43 - Step 5: Solve for x
x = 98,778,157,074.43/353,407.20 - Step 6: Final answer
x = 279,502.39
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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.