Finding the Fourth Proportional to 451,086.51, 622,346.12 and 257,355.05
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Solution
The fourth proportional to 451,086.51, 622,346.12 and 257,355.05 is: 355,062.53
Step by Step Solution
- Step 1: Write the proportion equation
451,086.51 : 622,346.12 = 257,355.05 : x - Step 2: Convert to fraction form
451,086.51/622,346.12 = 257,355.05/x - Step 3: Cross multiply
451,086.51x = 622,346.12 × 257,355.05 - Step 4: Simplify right side
451,086.51x = 160,163,916,829.91 - Step 5: Solve for x
x = 160,163,916,829.91/451,086.51 - Step 6: Final answer
x = 355,062.53
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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.